66783340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{647}}^1$

素因数の和:1066

約数の個数: 48

約数和(自身を含む): 151647552

約数和(自身を除く): 84864212

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 397, 647, 794, 1294, 1588, 1985, 2588, 3235, 3970, 5161, 6470, 7940, 8411, 10322, 12940, 16822, 20644, 25805, 33644, 42055, 51610, 84110, 103220, 168220, 256859, 513718, 1027436, 1284295, 2568590, 3339167, 5137180, 6678334, 13356668, 16695835, 33391670, 66783340]

約数ペア:

[(1, 66783340), (2, 33391670), (4, 16695835), (5, 13356668), (10, 6678334), (13, 5137180), (20, 3339167), (26, 2568590), (52, 1284295), (65, 1027436), (130, 513718), (260, 256859), (397, 168220), (647, 103220), (794, 84110), (1294, 51610), (1588, 42055), (1985, 33644), (2588, 25805), (3235, 20644), (3970, 16822), (5161, 12940), (6470, 10322), (7940, 8411)]