17640740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3571}}^1$

素因数の和:3612

約数の個数: 48

約数和(自身を含む): 42006720

約数和(自身を除く): 24365980

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 3571, 4940, 7142, 14284, 17855, 35710, 46423, 67849, 71420, 92846, 135698, 185692, 232115, 271396, 339245, 464230, 678490, 882037, 928460, 1356980, 1764074, 3528148, 4410185, 8820370, 17640740]

約数ペア:

[(1, 17640740), (2, 8820370), (4, 4410185), (5, 3528148), (10, 1764074), (13, 1356980), (19, 928460), (20, 882037), (26, 678490), (38, 464230), (52, 339245), (65, 271396), (76, 232115), (95, 185692), (130, 135698), (190, 92846), (247, 71420), (260, 67849), (380, 46423), (494, 35710), (988, 17855), (1235, 14284), (2470, 7142), (3571, 4940)]