81042040

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{6121}}^1$

素因数の和:6463

約数の個数: 32

約数和(自身を含む): 182925360

約数和(自身を除く): 101883320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1655, 2648, 3310, 6121, 6620, 12242, 13240, 24484, 30605, 48968, 61210, 122420, 244840, 2026051, 4052102, 8104204, 10130255, 16208408, 20260510, 40521020, 81042040]

約数ペア:

[(1, 81042040), (2, 40521020), (4, 20260510), (5, 16208408), (8, 10130255), (10, 8104204), (20, 4052102), (40, 2026051), (331, 244840), (662, 122420), (1324, 61210), (1655, 48968), (2648, 30605), (3310, 24484), (6121, 13240), (6620, 12242)]