12506620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{569}}^1$

素因数の和:742

約数の個数: 48

約数和(自身を含む): 30260160

約数和(自身を除く): 17753540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 569, 628, 785, 1099, 1138, 1570, 2198, 2276, 2845, 3140, 3983, 4396, 5495, 5690, 7966, 10990, 11380, 15932, 19915, 21980, 39830, 79660, 89333, 178666, 357332, 446665, 625331, 893330, 1250662, 1786660, 2501324, 3126655, 6253310, 12506620]

約数ペア:

[(1, 12506620), (2, 6253310), (4, 3126655), (5, 2501324), (7, 1786660), (10, 1250662), (14, 893330), (20, 625331), (28, 446665), (35, 357332), (70, 178666), (140, 89333), (157, 79660), (314, 39830), (569, 21980), (628, 19915), (785, 15932), (1099, 11380), (1138, 10990), (1570, 7966), (2198, 5690), (2276, 5495), (2845, 4396), (3140, 3983)]