81425072

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{229}}^1\times {\mathrm{313}}^1$

素因数の和:621

約数の個数: 40

約数和(自身を含む): 161195040

約数和(自身を除く): 79769968

約数列:

[1, 2, 4, 8, 16, 71, 142, 229, 284, 313, 458, 568, 626, 916, 1136, 1252, 1832, 2504, 3664, 5008, 16259, 22223, 32518, 44446, 65036, 71677, 88892, 130072, 143354, 177784, 260144, 286708, 355568, 573416, 1146832, 5089067, 10178134, 20356268, 40712536, 81425072]

約数ペア:

[(1, 81425072), (2, 40712536), (4, 20356268), (8, 10178134), (16, 5089067), (71, 1146832), (142, 573416), (229, 355568), (284, 286708), (313, 260144), (458, 177784), (568, 143354), (626, 130072), (916, 88892), (1136, 71677), (1252, 65036), (1832, 44446), (2504, 32518), (3664, 22223), (5008, 16259)]