405060

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 1167936

約数和(自身を除く): 762876

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 157, 172, 215, 258, 314, 430, 471, 516, 628, 645, 785, 860, 942, 1290, 1570, 1884, 2355, 2580, 3140, 4710, 6751, 9420, 13502, 20253, 27004, 33755, 40506, 67510, 81012, 101265, 135020, 202530, 405060]

約数ペア:

[(1, 405060), (2, 202530), (3, 135020), (4, 101265), (5, 81012), (6, 67510), (10, 40506), (12, 33755), (15, 27004), (20, 20253), (30, 13502), (43, 9420), (60, 6751), (86, 4710), (129, 3140), (157, 2580), (172, 2355), (215, 1884), (258, 1570), (314, 1290), (430, 942), (471, 860), (516, 785), (628, 645)]