20409350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1847}}^1$

素因数の和:1889

約数の個数: 48

約数和(自身を含む): 43309728

約数和(自身を除く): 22900378

約数列:

[1, 2, 5, 10, 13, 17, 25, 26, 34, 50, 65, 85, 130, 170, 221, 325, 425, 442, 650, 850, 1105, 1847, 2210, 3694, 5525, 9235, 11050, 18470, 24011, 31399, 46175, 48022, 62798, 92350, 120055, 156995, 240110, 313990, 408187, 600275, 784975, 816374, 1200550, 1569950, 2040935, 4081870, 10204675, 20409350]

約数ペア:

[(1, 20409350), (2, 10204675), (5, 4081870), (10, 2040935), (13, 1569950), (17, 1200550), (25, 816374), (26, 784975), (34, 600275), (50, 408187), (65, 313990), (85, 240110), (130, 156995), (170, 120055), (221, 92350), (325, 62798), (425, 48022), (442, 46175), (650, 31399), (850, 24011), (1105, 18470), (1847, 11050), (2210, 9235), (3694, 5525)]