20283040

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{7457}}^1$

素因数の和:7489

約数の個数: 48

約数和(自身を含む): 50744232

約数和(自身を除く): 30461192

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 7457, 14914, 29828, 37285, 59656, 74570, 119312, 126769, 149140, 238624, 253538, 298280, 507076, 596560, 633845, 1014152, 1193120, 1267690, 2028304, 2535380, 4056608, 5070760, 10141520, 20283040]

約数ペア:

[(1, 20283040), (2, 10141520), (4, 5070760), (5, 4056608), (8, 2535380), (10, 2028304), (16, 1267690), (17, 1193120), (20, 1014152), (32, 633845), (34, 596560), (40, 507076), (68, 298280), (80, 253538), (85, 238624), (136, 149140), (160, 126769), (170, 119312), (272, 74570), (340, 59656), (544, 37285), (680, 29828), (1360, 14914), (2720, 7457)]