66476840

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{31357}}^1$

素因数の和:31421

約数の個数: 32

約数和(自身を含む): 152399880

約数和(自身を除く): 85923040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 31357, 62714, 125428, 156785, 250856, 313570, 627140, 1254280, 1661921, 3323842, 6647684, 8309605, 13295368, 16619210, 33238420, 66476840]

約数ペア:

[(1, 66476840), (2, 33238420), (4, 16619210), (5, 13295368), (8, 8309605), (10, 6647684), (20, 3323842), (40, 1661921), (53, 1254280), (106, 627140), (212, 313570), (265, 250856), (424, 156785), (530, 125428), (1060, 62714), (2120, 31357)]