643569920

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:397

約数の個数: 216

約数和(自身を含む): 1856671488

約数和(自身を除く): 1213101568

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, 256, 280, 310, 320, 331, 392, 434, 448, 490, 496, 560, 620, 640, 662, 784, 868, 896, 980, 992, 1085, 1120, 1240, 1280, 1324, 1519, 1568, 1655, 1736, 1792, 1960, 1984, 2170, 2240, 2317, 2480, 2648, 3038, 3136, 3310, 3472, 3920, 3968, 4340, 4480, 4634, 4960, 5296, 6076, 6272, 6620, 6944, 7595, 7840, 7936, 8680, 8960, 9268, 9920, 10261, 10592, 11585, 12152, 12544, 13240, 13888, 15190, 15680, 16219, 17360, 18536, 19840, 20522, 21184, 23170, 24304, 26480, 27776, 30380, 31360, 32438, 34720, 37072, 39680, 41044, 42368, 46340, 48608, 51305, 52960, 55552, 60760, 62720, 64876, 69440, 71827, 74144, 81095, 82088, 84736, 92680, 97216, 102610, 105920, 121520, 129752, 138880, 143654, 148288, 162190, 164176, 185360, 194432, 205220, 211840, 243040, 259504, 277760, 287308, 296576, 324380, 328352, 359135, 370720, 388864, 410440, 423680, 486080, 502789, 519008, 574616, 593152, 648760, 656704, 718270, 741440, 820880, 972160, 1005578, 1038016, 1149232, 1297520, 1313408, 1436540, 1482880, 1641760, 1944320, 2011156, 2076032, 2298464, 2513945, 2595040, 2626816, 2873080, 2965760, 3283520, 4022312, 4152064, 4596928, 5027890, 5190080, 5746160, 6567040, 8044624, 9193856, 10055780, 10380160, 11492320, 13134080, 16089248, 18387712, 20111560, 20760320, 22984640, 32178496, 40223120, 45969280, 64356992, 80446240, 91938560, 128713984, 160892480, 321784960, 643569920]

約数ペア:

[(1, 643569920), (2, 321784960), (4, 160892480), (5, 128713984), (7, 91938560), (8, 80446240), (10, 64356992), (14, 45969280), (16, 40223120), (20, 32178496), (28, 22984640), (31, 20760320), (32, 20111560), (35, 18387712), (40, 16089248), (49, 13134080), (56, 11492320), (62, 10380160), (64, 10055780), (70, 9193856), (80, 8044624), (98, 6567040), (112, 5746160), (124, 5190080), (128, 5027890), (140, 4596928), (155, 4152064), (160, 4022312), (196, 3283520), (217, 2965760), (224, 2873080), (245, 2626816), (248, 2595040), (256, 2513945), (280, 2298464), (310, 2076032), (320, 2011156), (331, 1944320), (392, 1641760), (434, 1482880), (448, 1436540), (490, 1313408), (496, 1297520), (560, 1149232), (620, 1038016), (640, 1005578), (662, 972160), (784, 820880), (868, 741440), (896, 718270), (980, 656704), (992, 648760), (1085, 593152), (1120, 574616), (1240, 519008), (1280, 502789), (1324, 486080), (1519, 423680), (1568, 410440), (1655, 388864), (1736, 370720), (1792, 359135), (1960, 328352), (1984, 324380), (2170, 296576), (2240, 287308), (2317, 277760), (2480, 259504), (2648, 243040), (3038, 211840), (3136, 205220), (3310, 194432), (3472, 185360), (3920, 164176), (3968, 162190), (4340, 148288), (4480, 143654), (4634, 138880), (4960, 129752), (5296, 121520), (6076, 105920), (6272, 102610), (6620, 97216), (6944, 92680), (7595, 84736), (7840, 82088), (7936, 81095), (8680, 74144), (8960, 71827), (9268, 69440), (9920, 64876), (10261, 62720), (10592, 60760), (11585, 55552), (12152, 52960), (12544, 51305), (13240, 48608), (13888, 46340), (15190, 42368), (15680, 41044), (16219, 39680), (17360, 37072), (18536, 34720), (19840, 32438), (20522, 31360), (21184, 30380), (23170, 27776), (24304, 26480)]