25388840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1$

素因数の和:302

約数の個数: 64

約数和(自身を含む): 59466960

約数和(自身を除く): 34078120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 113, 137, 164, 205, 226, 274, 328, 410, 452, 548, 565, 685, 820, 904, 1096, 1130, 1370, 1640, 2260, 2740, 4520, 4633, 5480, 5617, 9266, 11234, 15481, 18532, 22468, 23165, 28085, 30962, 37064, 44936, 46330, 56170, 61924, 77405, 92660, 112340, 123848, 154810, 185320, 224680, 309620, 619240, 634721, 1269442, 2538884, 3173605, 5077768, 6347210, 12694420, 25388840]

約数ペア:

[(1, 25388840), (2, 12694420), (4, 6347210), (5, 5077768), (8, 3173605), (10, 2538884), (20, 1269442), (40, 634721), (41, 619240), (82, 309620), (113, 224680), (137, 185320), (164, 154810), (205, 123848), (226, 112340), (274, 92660), (328, 77405), (410, 61924), (452, 56170), (548, 46330), (565, 44936), (685, 37064), (820, 30962), (904, 28085), (1096, 23165), (1130, 22468), (1370, 18532), (1640, 15481), (2260, 11234), (2740, 9266), (4520, 5617), (4633, 5480)]