64813580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{2287}}^1$

素因数の和:2418

約数の個数: 48

約数和(自身を含む): 147987840

約数和(自身を除く): 83174260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 218, 260, 436, 545, 1090, 1417, 2180, 2287, 2834, 4574, 5668, 7085, 9148, 11435, 14170, 22870, 28340, 29731, 45740, 59462, 118924, 148655, 249283, 297310, 498566, 594620, 997132, 1246415, 2492830, 3240679, 4985660, 6481358, 12962716, 16203395, 32406790, 64813580]

約数ペア:

[(1, 64813580), (2, 32406790), (4, 16203395), (5, 12962716), (10, 6481358), (13, 4985660), (20, 3240679), (26, 2492830), (52, 1246415), (65, 997132), (109, 594620), (130, 498566), (218, 297310), (260, 249283), (436, 148655), (545, 118924), (1090, 59462), (1417, 45740), (2180, 29731), (2287, 28340), (2834, 22870), (4574, 14170), (5668, 11435), (7085, 9148)]