208021780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{335519}}^1$

素因数の和:335559

約数の個数: 24

約数和(自身を含む): 450938880

約数和(自身を除く): 242917100

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 335519, 671038, 1342076, 1677595, 3355190, 6710380, 10401089, 20802178, 41604356, 52005445, 104010890, 208021780]

約数ペア:

[(1, 208021780), (2, 104010890), (4, 52005445), (5, 41604356), (10, 20802178), (20, 10401089), (31, 6710380), (62, 3355190), (124, 1677595), (155, 1342076), (310, 671038), (620, 335519)]