20885280680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1129}}^1\times {\mathrm{42043}}^1$

素因数の和:43194

約数の個数: 64

約数和(自身を含む): 51310497600

約数和(自身を除く): 30425216920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 1129, 2258, 4516, 5645, 9032, 11290, 12419, 22580, 24838, 42043, 45160, 49676, 62095, 84086, 99352, 124190, 168172, 210215, 248380, 336344, 420430, 462473, 496760, 840860, 924946, 1681720, 1849892, 2312365, 3699784, 4624730, 9249460, 18498920, 47466547, 94933094, 189866188, 237332735, 379732376, 474665470, 522132017, 949330940, 1044264034, 1898661880, 2088528068, 2610660085, 4177056136, 5221320170, 10442640340, 20885280680]

約数ペア:

[(1, 20885280680), (2, 10442640340), (4, 5221320170), (5, 4177056136), (8, 2610660085), (10, 2088528068), (11, 1898661880), (20, 1044264034), (22, 949330940), (40, 522132017), (44, 474665470), (55, 379732376), (88, 237332735), (110, 189866188), (220, 94933094), (440, 47466547), (1129, 18498920), (2258, 9249460), (4516, 4624730), (5645, 3699784), (9032, 2312365), (11290, 1849892), (12419, 1681720), (22580, 924946), (24838, 840860), (42043, 496760), (45160, 462473), (49676, 420430), (62095, 336344), (84086, 248380), (99352, 210215), (124190, 168172)]