420567889

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1\times {\mathrm{229}}^1$

素因数の和:457

約数の個数: 32

約数和(自身を含む): 510048000

約数和(自身を除く): 89480111

約数列:

[1, 7, 29, 83, 109, 203, 229, 581, 763, 1603, 2407, 3161, 6641, 9047, 16849, 19007, 22127, 24961, 46487, 63329, 133049, 174727, 262363, 551203, 723869, 1836541, 2071763, 3858421, 5067083, 14502341, 60081127, 420567889]

約数ペア:

[(1, 420567889), (7, 60081127), (29, 14502341), (83, 5067083), (109, 3858421), (203, 2071763), (229, 1836541), (581, 723869), (763, 551203), (1603, 262363), (2407, 174727), (3161, 133049), (6641, 63329), (9047, 46487), (16849, 24961), (19007, 22127)]