1640331460

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{347}}^1\times {\mathrm{3329}}^1$

素因数の和:3756

約数の個数: 48

約数和(自身を含む): 3504332160

約数和(自身を除く): 1864000700

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 347, 355, 694, 710, 1388, 1420, 1735, 3329, 3470, 6658, 6940, 13316, 16645, 24637, 33290, 49274, 66580, 98548, 123185, 236359, 246370, 472718, 492740, 945436, 1155163, 1181795, 2310326, 2363590, 4620652, 4727180, 5775815, 11551630, 23103260, 82016573, 164033146, 328066292, 410082865, 820165730, 1640331460]

約数ペア:

[(1, 1640331460), (2, 820165730), (4, 410082865), (5, 328066292), (10, 164033146), (20, 82016573), (71, 23103260), (142, 11551630), (284, 5775815), (347, 4727180), (355, 4620652), (694, 2363590), (710, 2310326), (1388, 1181795), (1420, 1155163), (1735, 945436), (3329, 492740), (3470, 472718), (6658, 246370), (6940, 236359), (13316, 123185), (16645, 98548), (24637, 66580), (33290, 49274)]