1780822460

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{379}}^1\times {\mathrm{983}}^1$

素因数の和:1610

約数の個数: 48

約数和(自身を含む): 3769113600

約数和(自身を除く): 1988291140

約数列:

[1, 2, 4, 5, 10, 20, 239, 379, 478, 758, 956, 983, 1195, 1516, 1895, 1966, 2390, 3790, 3932, 4780, 4915, 7580, 9830, 19660, 90581, 181162, 234937, 362324, 372557, 452905, 469874, 745114, 905810, 939748, 1174685, 1490228, 1811620, 1862785, 2349370, 3725570, 4698740, 7451140, 89041123, 178082246, 356164492, 445205615, 890411230, 1780822460]

約数ペア:

[(1, 1780822460), (2, 890411230), (4, 445205615), (5, 356164492), (10, 178082246), (20, 89041123), (239, 7451140), (379, 4698740), (478, 3725570), (758, 2349370), (956, 1862785), (983, 1811620), (1195, 1490228), (1516, 1174685), (1895, 939748), (1966, 905810), (2390, 745114), (3790, 469874), (3932, 452905), (4780, 372557), (4915, 362324), (7580, 234937), (9830, 181162), (19660, 90581)]