20280491235

素因数分解:

$3^4\times 5^1\times {\mathrm{4273}}^1\times {\mathrm{11719}}^1$

素因数の和:16009

約数の個数: 40

約数和(自身を含む): 36366269280

約数和(自身を除く): 16085778045

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 4273, 11719, 12819, 21365, 35157, 38457, 58595, 64095, 105471, 115371, 175785, 192285, 316413, 346113, 527355, 576855, 949239, 1582065, 1730565, 4746195, 50075287, 150225861, 250376435, 450677583, 751129305, 1352032749, 2253387915, 4056098247, 6760163745, 20280491235]

約数ペア:

[(1, 20280491235), (3, 6760163745), (5, 4056098247), (9, 2253387915), (15, 1352032749), (27, 751129305), (45, 450677583), (81, 250376435), (135, 150225861), (405, 50075287), (4273, 4746195), (11719, 1730565), (12819, 1582065), (21365, 949239), (35157, 576855), (38457, 527355), (58595, 346113), (64095, 316413), (105471, 192285), (115371, 175785)]