20108655

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1$

素因数の和:238

約数の個数: 80

約数和(自身を含む): 42444864

約数和(自身を除く): 22336209

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 41, 45, 63, 81, 105, 123, 135, 173, 189, 205, 287, 315, 369, 405, 519, 567, 615, 861, 865, 945, 1107, 1211, 1435, 1557, 1845, 2583, 2595, 2835, 3321, 3633, 4305, 4671, 5535, 6055, 7093, 7749, 7785, 10899, 12915, 14013, 16605, 18165, 21279, 23247, 23355, 32697, 35465, 38745, 49651, 54495, 63837, 70065, 98091, 106395, 116235, 148953, 163485, 191511, 248255, 319185, 446859, 490455, 574533, 744765, 957555, 1340577, 2234295, 2872665, 4021731, 6702885, 20108655]

約数ペア:

[(1, 20108655), (3, 6702885), (5, 4021731), (7, 2872665), (9, 2234295), (15, 1340577), (21, 957555), (27, 744765), (35, 574533), (41, 490455), (45, 446859), (63, 319185), (81, 248255), (105, 191511), (123, 163485), (135, 148953), (173, 116235), (189, 106395), (205, 98091), (287, 70065), (315, 63837), (369, 54495), (405, 49651), (519, 38745), (567, 35465), (615, 32697), (861, 23355), (865, 23247), (945, 21279), (1107, 18165), (1211, 16605), (1435, 14013), (1557, 12915), (1845, 10899), (2583, 7785), (2595, 7749), (2835, 7093), (3321, 6055), (3633, 5535), (4305, 4671)]