91981980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{56779}}^1$

素因数の和:56800

約数の個数: 60

約数和(自身を含む): 288555960

約数和(自身を除く): 196573980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 56779, 113558, 170337, 227116, 283895, 340674, 511011, 567790, 681348, 851685, 1022022, 1135580, 1533033, 1703370, 2044044, 2555055, 3066066, 3406740, 4599099, 5110110, 6132132, 7665165, 9198198, 10220220, 15330330, 18396396, 22995495, 30660660, 45990990, 91981980]

約数ペア:

[(1, 91981980), (2, 45990990), (3, 30660660), (4, 22995495), (5, 18396396), (6, 15330330), (9, 10220220), (10, 9198198), (12, 7665165), (15, 6132132), (18, 5110110), (20, 4599099), (27, 3406740), (30, 3066066), (36, 2555055), (45, 2044044), (54, 1703370), (60, 1533033), (81, 1135580), (90, 1022022), (108, 851685), (135, 681348), (162, 567790), (180, 511011), (270, 340674), (324, 283895), (405, 227116), (540, 170337), (810, 113558), (1620, 56779)]