72802280

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{29837}}^1$

素因数の和:29909

約数の個数: 32

約数和(自身を含む): 166496040

約数和(自身を除く): 93693760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 29837, 59674, 119348, 149185, 238696, 298370, 596740, 1193480, 1820057, 3640114, 7280228, 9100285, 14560456, 18200570, 36401140, 72802280]

約数ペア:

[(1, 72802280), (2, 36401140), (4, 18200570), (5, 14560456), (8, 9100285), (10, 7280228), (20, 3640114), (40, 1820057), (61, 1193480), (122, 596740), (244, 298370), (305, 238696), (488, 149185), (610, 119348), (1220, 59674), (2440, 29837)]