25302820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1103}}^1$

素因数の和:1180

約数の個数: 48

約数和(自身を含む): 56383488

約数和(自身を除く): 31080668

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 62, 74, 124, 148, 155, 185, 310, 370, 620, 740, 1103, 1147, 2206, 2294, 4412, 4588, 5515, 5735, 11030, 11470, 22060, 22940, 34193, 40811, 68386, 81622, 136772, 163244, 170965, 204055, 341930, 408110, 683860, 816220, 1265141, 2530282, 5060564, 6325705, 12651410, 25302820]

約数ペア:

[(1, 25302820), (2, 12651410), (4, 6325705), (5, 5060564), (10, 2530282), (20, 1265141), (31, 816220), (37, 683860), (62, 408110), (74, 341930), (124, 204055), (148, 170965), (155, 163244), (185, 136772), (310, 81622), (370, 68386), (620, 40811), (740, 34193), (1103, 22940), (1147, 22060), (2206, 11470), (2294, 11030), (4412, 5735), (4588, 5515)]