9940880

素因数分解:

$2^4\times 5^1\times {\mathrm{313}}^1\times {\mathrm{397}}^1$

素因数の和:723

約数の個数: 40

約数和(自身を含む): 23244792

約数和(自身を除く): 13303912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 313, 397, 626, 794, 1252, 1565, 1588, 1985, 2504, 3130, 3176, 3970, 5008, 6260, 6352, 7940, 12520, 15880, 25040, 31760, 124261, 248522, 497044, 621305, 994088, 1242610, 1988176, 2485220, 4970440, 9940880]

約数ペア:

[(1, 9940880), (2, 4970440), (4, 2485220), (5, 1988176), (8, 1242610), (10, 994088), (16, 621305), (20, 497044), (40, 248522), (80, 124261), (313, 31760), (397, 25040), (626, 15880), (794, 12520), (1252, 7940), (1565, 6352), (1588, 6260), (1985, 5008), (2504, 3970), (3130, 3176)]