7978490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{4721}}^1$

素因数の和:4754

約数の個数: 24

約数和(自身を含む): 15554268

約数和(自身を除く): 7575778

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 4721, 9442, 23605, 47210, 61373, 122746, 306865, 613730, 797849, 1595698, 3989245, 7978490]

約数ペア:

[(1, 7978490), (2, 3989245), (5, 1595698), (10, 797849), (13, 613730), (26, 306865), (65, 122746), (130, 61373), (169, 47210), (338, 23605), (845, 9442), (1690, 4721)]