12777580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{557}}^1$

素因数の和:634

約数の個数: 48

約数和(自身を含む): 28498176

約数和(自身を除く): 15720596

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 62, 74, 124, 148, 155, 185, 310, 370, 557, 620, 740, 1114, 1147, 2228, 2294, 2785, 4588, 5570, 5735, 11140, 11470, 17267, 20609, 22940, 34534, 41218, 69068, 82436, 86335, 103045, 172670, 206090, 345340, 412180, 638879, 1277758, 2555516, 3194395, 6388790, 12777580]

約数ペア:

[(1, 12777580), (2, 6388790), (4, 3194395), (5, 2555516), (10, 1277758), (20, 638879), (31, 412180), (37, 345340), (62, 206090), (74, 172670), (124, 103045), (148, 86335), (155, 82436), (185, 69068), (310, 41218), (370, 34534), (557, 22940), (620, 20609), (740, 17267), (1114, 11470), (1147, 11140), (2228, 5735), (2294, 5570), (2785, 4588)]