25034980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{271}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 54835200

約数和(自身を除く): 29800220

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 149, 155, 271, 298, 310, 542, 596, 620, 745, 1084, 1355, 1490, 2710, 2980, 4619, 5420, 8401, 9238, 16802, 18476, 23095, 33604, 40379, 42005, 46190, 80758, 84010, 92380, 161516, 168020, 201895, 403790, 807580, 1251749, 2503498, 5006996, 6258745, 12517490, 25034980]

約数ペア:

[(1, 25034980), (2, 12517490), (4, 6258745), (5, 5006996), (10, 2503498), (20, 1251749), (31, 807580), (62, 403790), (124, 201895), (149, 168020), (155, 161516), (271, 92380), (298, 84010), (310, 80758), (542, 46190), (596, 42005), (620, 40379), (745, 33604), (1084, 23095), (1355, 18476), (1490, 16802), (2710, 9238), (2980, 8401), (4619, 5420)]