221329620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{569}}^1\times {\mathrm{2161}}^1$

素因数の和:2745

約数の個数: 72

約数和(自身を含む): 672857640

約数和(自身を除く): 451528020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 569, 1138, 1707, 2161, 2276, 2845, 3414, 4322, 5121, 5690, 6483, 6828, 8535, 8644, 10242, 10805, 11380, 12966, 17070, 19449, 20484, 21610, 25605, 25932, 32415, 34140, 38898, 43220, 51210, 64830, 77796, 97245, 102420, 129660, 194490, 388980, 1229609, 2459218, 3688827, 4918436, 6148045, 7377654, 11066481, 12296090, 14755308, 18444135, 22132962, 24592180, 36888270, 44265924, 55332405, 73776540, 110664810, 221329620]

約数ペア:

[(1, 221329620), (2, 110664810), (3, 73776540), (4, 55332405), (5, 44265924), (6, 36888270), (9, 24592180), (10, 22132962), (12, 18444135), (15, 14755308), (18, 12296090), (20, 11066481), (30, 7377654), (36, 6148045), (45, 4918436), (60, 3688827), (90, 2459218), (180, 1229609), (569, 388980), (1138, 194490), (1707, 129660), (2161, 102420), (2276, 97245), (2845, 77796), (3414, 64830), (4322, 51210), (5121, 43220), (5690, 38898), (6483, 34140), (6828, 32415), (8535, 25932), (8644, 25605), (10242, 21610), (10805, 20484), (11380, 19449), (12966, 17070)]