305501280

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{419}}^1$

素因数の和:482

約数の個数: 288

約数和(自身を含む): 1158312960

約数和(自身を除く): 852811680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 32, 35, 40, 42, 48, 49, 56, 60, 62, 70, 80, 84, 93, 96, 98, 105, 112, 120, 124, 140, 147, 155, 160, 168, 186, 196, 210, 217, 224, 240, 245, 248, 280, 294, 310, 336, 372, 392, 419, 420, 434, 465, 480, 490, 496, 560, 588, 620, 651, 672, 735, 744, 784, 838, 840, 868, 930, 980, 992, 1085, 1120, 1176, 1240, 1257, 1302, 1470, 1488, 1519, 1568, 1676, 1680, 1736, 1860, 1960, 2095, 2170, 2352, 2480, 2514, 2604, 2933, 2940, 2976, 3038, 3255, 3352, 3360, 3472, 3720, 3920, 4190, 4340, 4557, 4704, 4960, 5028, 5208, 5866, 5880, 6076, 6285, 6510, 6704, 6944, 7440, 7595, 7840, 8380, 8680, 8799, 9114, 10056, 10416, 11732, 11760, 12152, 12570, 12989, 13020, 13408, 14665, 14880, 15190, 16760, 17360, 17598, 18228, 20112, 20531, 20832, 22785, 23464, 23520, 24304, 25140, 25978, 26040, 29330, 30380, 33520, 34720, 35196, 36456, 38967, 40224, 41062, 43995, 45570, 46928, 48608, 50280, 51956, 52080, 58660, 60760, 61593, 64945, 67040, 70392, 72912, 77934, 82124, 87990, 90923, 91140, 93856, 100560, 102655, 103912, 104160, 117320, 121520, 123186, 129890, 140784, 145824, 155868, 164248, 175980, 181846, 182280, 194835, 201120, 205310, 207824, 234640, 243040, 246372, 259780, 272769, 281568, 307965, 311736, 328496, 351960, 363692, 364560, 389670, 410620, 415648, 454615, 469280, 492744, 519560, 545538, 615930, 623472, 636461, 656992, 703920, 727384, 729120, 779340, 821240, 909230, 985488, 1039120, 1091076, 1231860, 1246944, 1272922, 1363845, 1407840, 1454768, 1558680, 1642480, 1818460, 1909383, 1970976, 2078240, 2182152, 2463720, 2545844, 2727690, 2909536, 3117360, 3182305, 3284960, 3636920, 3818766, 4364304, 4927440, 5091688, 5455380, 6234720, 6364610, 7273840, 7637532, 8728608, 9546915, 9854880, 10183376, 10910760, 12729220, 14547680, 15275064, 19093830, 20366752, 21821520, 25458440, 30550128, 38187660, 43643040, 50916880, 61100256, 76375320, 101833760, 152750640, 305501280]

約数ペア:

[(1, 305501280), (2, 152750640), (3, 101833760), (4, 76375320), (5, 61100256), (6, 50916880), (7, 43643040), (8, 38187660), (10, 30550128), (12, 25458440), (14, 21821520), (15, 20366752), (16, 19093830), (20, 15275064), (21, 14547680), (24, 12729220), (28, 10910760), (30, 10183376), (31, 9854880), (32, 9546915), (35, 8728608), (40, 7637532), (42, 7273840), (48, 6364610), (49, 6234720), (56, 5455380), (60, 5091688), (62, 4927440), (70, 4364304), (80, 3818766), (84, 3636920), (93, 3284960), (96, 3182305), (98, 3117360), (105, 2909536), (112, 2727690), (120, 2545844), (124, 2463720), (140, 2182152), (147, 2078240), (155, 1970976), (160, 1909383), (168, 1818460), (186, 1642480), (196, 1558680), (210, 1454768), (217, 1407840), (224, 1363845), (240, 1272922), (245, 1246944), (248, 1231860), (280, 1091076), (294, 1039120), (310, 985488), (336, 909230), (372, 821240), (392, 779340), (419, 729120), (420, 727384), (434, 703920), (465, 656992), (480, 636461), (490, 623472), (496, 615930), (560, 545538), (588, 519560), (620, 492744), (651, 469280), (672, 454615), (735, 415648), (744, 410620), (784, 389670), (838, 364560), (840, 363692), (868, 351960), (930, 328496), (980, 311736), (992, 307965), (1085, 281568), (1120, 272769), (1176, 259780), (1240, 246372), (1257, 243040), (1302, 234640), (1470, 207824), (1488, 205310), (1519, 201120), (1568, 194835), (1676, 182280), (1680, 181846), (1736, 175980), (1860, 164248), (1960, 155868), (2095, 145824), (2170, 140784), (2352, 129890), (2480, 123186), (2514, 121520), (2604, 117320), (2933, 104160), (2940, 103912), (2976, 102655), (3038, 100560), (3255, 93856), (3352, 91140), (3360, 90923), (3472, 87990), (3720, 82124), (3920, 77934), (4190, 72912), (4340, 70392), (4557, 67040), (4704, 64945), (4960, 61593), (5028, 60760), (5208, 58660), (5866, 52080), (5880, 51956), (6076, 50280), (6285, 48608), (6510, 46928), (6704, 45570), (6944, 43995), (7440, 41062), (7595, 40224), (7840, 38967), (8380, 36456), (8680, 35196), (8799, 34720), (9114, 33520), (10056, 30380), (10416, 29330), (11732, 26040), (11760, 25978), (12152, 25140), (12570, 24304), (12989, 23520), (13020, 23464), (13408, 22785), (14665, 20832), (14880, 20531), (15190, 20112), (16760, 18228), (17360, 17598)]