81611470

素因数分解:

$2^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{179}}^1\times {\mathrm{359}}^1$

素因数の和:672

約数の個数: 32

約数和(自身を含む): 149299200

約数和(自身を除く): 67687730

約数列:

[1, 2, 5, 10, 127, 179, 254, 358, 359, 635, 718, 895, 1270, 1790, 1795, 3590, 22733, 45466, 45593, 64261, 91186, 113665, 128522, 227330, 227965, 321305, 455930, 642610, 8161147, 16322294, 40805735, 81611470]

約数ペア:

[(1, 81611470), (2, 40805735), (5, 16322294), (10, 8161147), (127, 642610), (179, 455930), (254, 321305), (358, 227965), (359, 227330), (635, 128522), (718, 113665), (895, 91186), (1270, 64261), (1790, 45593), (1795, 45466), (3590, 22733)]