1217503880

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{498977}}^1$

素因数の和:499049

約数の個数: 32

約数和(自身を含む): 2784297240

約数和(自身を除く): 1566793360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 498977, 997954, 1995908, 2494885, 3991816, 4989770, 9979540, 19959080, 30437597, 60875194, 121750388, 152187985, 243500776, 304375970, 608751940, 1217503880]

約数ペア:

[(1, 1217503880), (2, 608751940), (4, 304375970), (5, 243500776), (8, 152187985), (10, 121750388), (20, 60875194), (40, 30437597), (61, 19959080), (122, 9979540), (244, 4989770), (305, 3991816), (488, 2494885), (610, 1995908), (1220, 997954), (2440, 498977)]