18245420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{521}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 41041728

約数和(自身を除く): 22796308

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 103, 170, 206, 340, 412, 515, 521, 1030, 1042, 1751, 2060, 2084, 2605, 3502, 5210, 7004, 8755, 8857, 10420, 17510, 17714, 35020, 35428, 44285, 53663, 88570, 107326, 177140, 214652, 268315, 536630, 912271, 1073260, 1824542, 3649084, 4561355, 9122710, 18245420]

約数ペア:

[(1, 18245420), (2, 9122710), (4, 4561355), (5, 3649084), (10, 1824542), (17, 1073260), (20, 912271), (34, 536630), (68, 268315), (85, 214652), (103, 177140), (170, 107326), (206, 88570), (340, 53663), (412, 44285), (515, 35428), (521, 35020), (1030, 17714), (1042, 17510), (1751, 10420), (2060, 8857), (2084, 8755), (2605, 7004), (3502, 5210)]