321784960

素因数分解:

$2^7\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:395

約数の個数: 192

約数和(自身を含む): 926519040

約数和(自身を除く): 604734080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 64, 70, 80, 98, 112, 124, 128, 140, 155, 160, 196, 217, 224, 245, 248, 280, 310, 320, 331, 392, 434, 448, 490, 496, 560, 620, 640, 662, 784, 868, 896, 980, 992, 1085, 1120, 1240, 1324, 1519, 1568, 1655, 1736, 1960, 1984, 2170, 2240, 2317, 2480, 2648, 3038, 3136, 3310, 3472, 3920, 3968, 4340, 4480, 4634, 4960, 5296, 6076, 6272, 6620, 6944, 7595, 7840, 8680, 9268, 9920, 10261, 10592, 11585, 12152, 13240, 13888, 15190, 15680, 16219, 17360, 18536, 19840, 20522, 21184, 23170, 24304, 26480, 27776, 30380, 31360, 32438, 34720, 37072, 41044, 42368, 46340, 48608, 51305, 52960, 60760, 64876, 69440, 71827, 74144, 81095, 82088, 92680, 97216, 102610, 105920, 121520, 129752, 138880, 143654, 148288, 162190, 164176, 185360, 194432, 205220, 211840, 243040, 259504, 287308, 296576, 324380, 328352, 359135, 370720, 410440, 486080, 502789, 519008, 574616, 648760, 656704, 718270, 741440, 820880, 972160, 1005578, 1038016, 1149232, 1297520, 1313408, 1436540, 1482880, 1641760, 2011156, 2076032, 2298464, 2513945, 2595040, 2873080, 3283520, 4022312, 4596928, 5027890, 5190080, 5746160, 6567040, 8044624, 9193856, 10055780, 10380160, 11492320, 16089248, 20111560, 22984640, 32178496, 40223120, 45969280, 64356992, 80446240, 160892480, 321784960]

約数ペア:

[(1, 321784960), (2, 160892480), (4, 80446240), (5, 64356992), (7, 45969280), (8, 40223120), (10, 32178496), (14, 22984640), (16, 20111560), (20, 16089248), (28, 11492320), (31, 10380160), (32, 10055780), (35, 9193856), (40, 8044624), (49, 6567040), (56, 5746160), (62, 5190080), (64, 5027890), (70, 4596928), (80, 4022312), (98, 3283520), (112, 2873080), (124, 2595040), (128, 2513945), (140, 2298464), (155, 2076032), (160, 2011156), (196, 1641760), (217, 1482880), (224, 1436540), (245, 1313408), (248, 1297520), (280, 1149232), (310, 1038016), (320, 1005578), (331, 972160), (392, 820880), (434, 741440), (448, 718270), (490, 656704), (496, 648760), (560, 574616), (620, 519008), (640, 502789), (662, 486080), (784, 410440), (868, 370720), (896, 359135), (980, 328352), (992, 324380), (1085, 296576), (1120, 287308), (1240, 259504), (1324, 243040), (1519, 211840), (1568, 205220), (1655, 194432), (1736, 185360), (1960, 164176), (1984, 162190), (2170, 148288), (2240, 143654), (2317, 138880), (2480, 129752), (2648, 121520), (3038, 105920), (3136, 102610), (3310, 97216), (3472, 92680), (3920, 82088), (3968, 81095), (4340, 74144), (4480, 71827), (4634, 69440), (4960, 64876), (5296, 60760), (6076, 52960), (6272, 51305), (6620, 48608), (6944, 46340), (7595, 42368), (7840, 41044), (8680, 37072), (9268, 34720), (9920, 32438), (10261, 31360), (10592, 30380), (11585, 27776), (12152, 26480), (13240, 24304), (13888, 23170), (15190, 21184), (15680, 20522), (16219, 19840), (17360, 18536)]