290401860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{691433}}^1$

素因数の和:691452

約数の個数: 48

約数和(自身を含む): 929287296

約数和(自身を除く): 638885436

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 691433, 1382866, 2074299, 2765732, 3457165, 4148598, 4840031, 6914330, 8297196, 9680062, 10371495, 13828660, 14520093, 19360124, 20742990, 24200155, 29040186, 41485980, 48400310, 58080372, 72600465, 96800620, 145200930, 290401860]

約数ペア:

[(1, 290401860), (2, 145200930), (3, 96800620), (4, 72600465), (5, 58080372), (6, 48400310), (7, 41485980), (10, 29040186), (12, 24200155), (14, 20742990), (15, 19360124), (20, 14520093), (21, 13828660), (28, 10371495), (30, 9680062), (35, 8297196), (42, 6914330), (60, 4840031), (70, 4148598), (84, 3457165), (105, 2765732), (140, 2074299), (210, 1382866), (420, 691433)]