72821480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{58727}}^1$

素因数の和:58769

約数の個数: 32

約数和(自身を含む): 169136640

約数和(自身を除く): 96315160

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 58727, 117454, 234908, 293635, 469816, 587270, 1174540, 1820537, 2349080, 3641074, 7282148, 9102685, 14564296, 18205370, 36410740, 72821480]

約数ペア:

[(1, 72821480), (2, 36410740), (4, 18205370), (5, 14564296), (8, 9102685), (10, 7282148), (20, 3641074), (31, 2349080), (40, 1820537), (62, 1174540), (124, 587270), (155, 469816), (248, 293635), (310, 234908), (620, 117454), (1240, 58727)]