256424560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{14771}}^1$

素因数の和:14822

約数の個数: 80

約数和(自身を含む): 703383552

約数和(自身を除く): 446958992

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1736, 2170, 2480, 3472, 4340, 8680, 14771, 17360, 29542, 59084, 73855, 103397, 118168, 147710, 206794, 236336, 295420, 413588, 457901, 516985, 590840, 827176, 915802, 1033970, 1181680, 1654352, 1831604, 2067940, 2289505, 3205307, 3663208, 4135880, 4579010, 6410614, 7326416, 8271760, 9158020, 12821228, 16026535, 18316040, 25642456, 32053070, 36632080, 51284912, 64106140, 128212280, 256424560]

約数ペア:

[(1, 256424560), (2, 128212280), (4, 64106140), (5, 51284912), (7, 36632080), (8, 32053070), (10, 25642456), (14, 18316040), (16, 16026535), (20, 12821228), (28, 9158020), (31, 8271760), (35, 7326416), (40, 6410614), (56, 4579010), (62, 4135880), (70, 3663208), (80, 3205307), (112, 2289505), (124, 2067940), (140, 1831604), (155, 1654352), (217, 1181680), (248, 1033970), (280, 915802), (310, 827176), (434, 590840), (496, 516985), (560, 457901), (620, 413588), (868, 295420), (1085, 236336), (1240, 206794), (1736, 147710), (2170, 118168), (2480, 103397), (3472, 73855), (4340, 59084), (8680, 29542), (14771, 17360)]