2509968220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1009}}^1\times {\mathrm{2039}}^1$

素因数の和:3118

約数の個数: 48

約数和(自身を含む): 5365281600

約数和(自身を除く): 2855313380

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1009, 1220, 2018, 2039, 4036, 4078, 5045, 8156, 10090, 10195, 20180, 20390, 40780, 61549, 123098, 124379, 246196, 248758, 307745, 497516, 615490, 621895, 1230980, 1243790, 2057351, 2487580, 4114702, 8229404, 10286755, 20573510, 41147020, 125498411, 250996822, 501993644, 627492055, 1254984110, 2509968220]

約数ペア:

[(1, 2509968220), (2, 1254984110), (4, 627492055), (5, 501993644), (10, 250996822), (20, 125498411), (61, 41147020), (122, 20573510), (244, 10286755), (305, 8229404), (610, 4114702), (1009, 2487580), (1220, 2057351), (2018, 1243790), (2039, 1230980), (4036, 621895), (4078, 615490), (5045, 497516), (8156, 307745), (10090, 248758), (10195, 246196), (20180, 124379), (20390, 123098), (40780, 61549)]