81851100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{251}}^1\times {\mathrm{1087}}^1$

素因数の和:1355

約数の個数: 72

約数和(自身を含む): 237984768

約数和(自身を除く): 156133668

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 251, 300, 502, 753, 1004, 1087, 1255, 1506, 2174, 2510, 3012, 3261, 3765, 4348, 5020, 5435, 6275, 6522, 7530, 10870, 12550, 13044, 15060, 16305, 18825, 21740, 25100, 27175, 32610, 37650, 54350, 65220, 75300, 81525, 108700, 163050, 272837, 326100, 545674, 818511, 1091348, 1364185, 1637022, 2728370, 3274044, 4092555, 5456740, 6820925, 8185110, 13641850, 16370220, 20462775, 27283700, 40925550, 81851100]

約数ペア:

[(1, 81851100), (2, 40925550), (3, 27283700), (4, 20462775), (5, 16370220), (6, 13641850), (10, 8185110), (12, 6820925), (15, 5456740), (20, 4092555), (25, 3274044), (30, 2728370), (50, 1637022), (60, 1364185), (75, 1091348), (100, 818511), (150, 545674), (251, 326100), (300, 272837), (502, 163050), (753, 108700), (1004, 81525), (1087, 75300), (1255, 65220), (1506, 54350), (2174, 37650), (2510, 32610), (3012, 27175), (3261, 25100), (3765, 21740), (4348, 18825), (5020, 16305), (5435, 15060), (6275, 13044), (6522, 12550), (7530, 10870)]