31301080

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{241}}^1$

素因数の和:460

約数の個数: 64

約数和(自身を含む): 75271680

約数和(自身を除く): 43970600

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 191, 241, 340, 382, 482, 680, 764, 955, 964, 1205, 1528, 1910, 1928, 2410, 3247, 3820, 4097, 4820, 6494, 7640, 8194, 9640, 12988, 16235, 16388, 20485, 25976, 32470, 32776, 40970, 46031, 64940, 81940, 92062, 129880, 163880, 184124, 230155, 368248, 460310, 782527, 920620, 1565054, 1841240, 3130108, 3912635, 6260216, 7825270, 15650540, 31301080]

約数ペア:

[(1, 31301080), (2, 15650540), (4, 7825270), (5, 6260216), (8, 3912635), (10, 3130108), (17, 1841240), (20, 1565054), (34, 920620), (40, 782527), (68, 460310), (85, 368248), (136, 230155), (170, 184124), (191, 163880), (241, 129880), (340, 92062), (382, 81940), (482, 64940), (680, 46031), (764, 40970), (955, 32776), (964, 32470), (1205, 25976), (1528, 20485), (1910, 16388), (1928, 16235), (2410, 12988), (3247, 9640), (3820, 8194), (4097, 7640), (4820, 6494)]