8771980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{8951}}^1$

素因数の和:8974

約数の個数: 36

約数和(自身を含む): 21431088

約数和(自身を除く): 12659108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 8951, 17902, 35804, 44755, 62657, 89510, 125314, 179020, 250628, 313285, 438599, 626570, 877198, 1253140, 1754396, 2192995, 4385990, 8771980]

約数ペア:

[(1, 8771980), (2, 4385990), (4, 2192995), (5, 1754396), (7, 1253140), (10, 877198), (14, 626570), (20, 438599), (28, 313285), (35, 250628), (49, 179020), (70, 125314), (98, 89510), (140, 62657), (196, 44755), (245, 35804), (490, 17902), (980, 8951)]