81212940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{451183}}^1$

素因数の和:451198

約数の個数: 36

約数和(自身を含む): 246346464

約数和(自身を除く): 165133524

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 451183, 902366, 1353549, 1804732, 2255915, 2707098, 4060647, 4511830, 5414196, 6767745, 8121294, 9023660, 13535490, 16242588, 20303235, 27070980, 40606470, 81212940]

約数ペア:

[(1, 81212940), (2, 40606470), (3, 27070980), (4, 20303235), (5, 16242588), (6, 13535490), (9, 9023660), (10, 8121294), (12, 6767745), (15, 5414196), (18, 4511830), (20, 4060647), (30, 2707098), (36, 2255915), (45, 1804732), (60, 1353549), (90, 902366), (180, 451183)]