19756980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{36587}}^1$

素因数の和:36605

約数の個数: 48

約数和(自身を含む): 61467840

約数和(自身を除く): 41710860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 36587, 73174, 109761, 146348, 182935, 219522, 329283, 365870, 439044, 548805, 658566, 731740, 987849, 1097610, 1317132, 1646415, 1975698, 2195220, 3292830, 3951396, 4939245, 6585660, 9878490, 19756980]

約数ペア:

[(1, 19756980), (2, 9878490), (3, 6585660), (4, 4939245), (5, 3951396), (6, 3292830), (9, 2195220), (10, 1975698), (12, 1646415), (15, 1317132), (18, 1097610), (20, 987849), (27, 731740), (30, 658566), (36, 548805), (45, 439044), (54, 365870), (60, 329283), (90, 219522), (108, 182935), (135, 146348), (180, 109761), (270, 73174), (540, 36587)]