81157970

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{757}}^1$

素因数の和:986

約数の個数: 32

約数和(自身を含む): 149319936

約数和(自身を除く): 68161966

約数列:

[1, 2, 5, 10, 71, 142, 151, 302, 355, 710, 755, 757, 1510, 1514, 3785, 7570, 10721, 21442, 53605, 53747, 107210, 107494, 114307, 228614, 268735, 537470, 571535, 1143070, 8115797, 16231594, 40578985, 81157970]

約数ペア:

[(1, 81157970), (2, 40578985), (5, 16231594), (10, 8115797), (71, 1143070), (142, 571535), (151, 537470), (302, 268735), (355, 228614), (710, 114307), (755, 107494), (757, 107210), (1510, 53747), (1514, 53605), (3785, 21442), (7570, 10721)]