223564820

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{587}}^1$

素因数の和:872

約数の個数: 48

約数和(自身を含む): 477126720

約数和(自身を除く): 253561900

約数列:

[1, 2, 4, 5, 10, 20, 137, 139, 274, 278, 548, 556, 587, 685, 695, 1174, 1370, 1390, 2348, 2740, 2780, 2935, 5870, 11740, 19043, 38086, 76172, 80419, 81593, 95215, 160838, 163186, 190430, 321676, 326372, 380860, 402095, 407965, 804190, 815930, 1608380, 1631860, 11178241, 22356482, 44712964, 55891205, 111782410, 223564820]

約数ペア:

[(1, 223564820), (2, 111782410), (4, 55891205), (5, 44712964), (10, 22356482), (20, 11178241), (137, 1631860), (139, 1608380), (274, 815930), (278, 804190), (548, 407965), (556, 402095), (587, 380860), (685, 326372), (695, 321676), (1174, 190430), (1370, 163186), (1390, 160838), (2348, 95215), (2740, 81593), (2780, 80419), (2935, 76172), (5870, 38086), (11740, 19043)]