66881960

素因数分解:

$2^3\times 5^1\times {\mathrm{1129}}^1\times {\mathrm{1481}}^1$

素因数の和:2621

約数の個数: 32

約数和(自身を含む): 150719400

約数和(自身を除く): 83837440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1129, 1481, 2258, 2962, 4516, 5645, 5924, 7405, 9032, 11290, 11848, 14810, 22580, 29620, 45160, 59240, 1672049, 3344098, 6688196, 8360245, 13376392, 16720490, 33440980, 66881960]

約数ペア:

[(1, 66881960), (2, 33440980), (4, 16720490), (5, 13376392), (8, 8360245), (10, 6688196), (20, 3344098), (40, 1672049), (1129, 59240), (1481, 45160), (2258, 29620), (2962, 22580), (4516, 14810), (5645, 11848), (5924, 11290), (7405, 9032)]