66485420

素因数分解:

$2^2\times 5^1\times {\mathrm{461}}^1\times {\mathrm{7211}}^1$

素因数の和:7681

約数の個数: 24

約数和(自身を含む): 139941648

約数和(自身を除く): 73456228

約数列:

[1, 2, 4, 5, 10, 20, 461, 922, 1844, 2305, 4610, 7211, 9220, 14422, 28844, 36055, 72110, 144220, 3324271, 6648542, 13297084, 16621355, 33242710, 66485420]

約数ペア:

[(1, 66485420), (2, 33242710), (4, 16621355), (5, 13297084), (10, 6648542), (20, 3324271), (461, 144220), (922, 72110), (1844, 36055), (2305, 28844), (4610, 14422), (7211, 9220)]