64941580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{1399}}^1$

素因数の和:1630

約数の個数: 48

約数和(自身を含む): 149587200

約数和(自身を除く): 84645620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 211, 220, 422, 844, 1055, 1399, 2110, 2321, 2798, 4220, 4642, 5596, 6995, 9284, 11605, 13990, 15389, 23210, 27980, 30778, 46420, 61556, 76945, 153890, 295189, 307780, 590378, 1180756, 1475945, 2951890, 3247079, 5903780, 6494158, 12988316, 16235395, 32470790, 64941580]

約数ペア:

[(1, 64941580), (2, 32470790), (4, 16235395), (5, 12988316), (10, 6494158), (11, 5903780), (20, 3247079), (22, 2951890), (44, 1475945), (55, 1180756), (110, 590378), (211, 307780), (220, 295189), (422, 153890), (844, 76945), (1055, 61556), (1399, 46420), (2110, 30778), (2321, 27980), (2798, 23210), (4220, 15389), (4642, 13990), (5596, 11605), (6995, 9284)]