72421860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{172433}}^1$

素因数の和:172452

約数の個数: 48

約数和(自身を含む): 231751296

約数和(自身を除く): 159329436

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 172433, 344866, 517299, 689732, 862165, 1034598, 1207031, 1724330, 2069196, 2414062, 2586495, 3448660, 3621093, 4828124, 5172990, 6035155, 7242186, 10345980, 12070310, 14484372, 18105465, 24140620, 36210930, 72421860]

約数ペア:

[(1, 72421860), (2, 36210930), (3, 24140620), (4, 18105465), (5, 14484372), (6, 12070310), (7, 10345980), (10, 7242186), (12, 6035155), (14, 5172990), (15, 4828124), (20, 3621093), (21, 3448660), (28, 2586495), (30, 2414062), (35, 2069196), (42, 1724330), (60, 1207031), (70, 1034598), (84, 862165), (105, 689732), (140, 517299), (210, 344866), (420, 172433)]