100288880

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{20551}}^1$

素因数の和:20625

約数の個数: 40

約数和(自身を含む): 237005664

約数和(自身を除く): 136716784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 20551, 41102, 82204, 102755, 164408, 205510, 328816, 411020, 822040, 1253611, 1644080, 2507222, 5014444, 6268055, 10028888, 12536110, 20057776, 25072220, 50144440, 100288880]

約数ペア:

[(1, 100288880), (2, 50144440), (4, 25072220), (5, 20057776), (8, 12536110), (10, 10028888), (16, 6268055), (20, 5014444), (40, 2507222), (61, 1644080), (80, 1253611), (122, 822040), (244, 411020), (305, 328816), (488, 205510), (610, 164408), (976, 102755), (1220, 82204), (2440, 41102), (4880, 20551)]