131581380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{313289}}^1$

素因数の和:313308

約数の個数: 48

約数和(自身を含む): 421061760

約数和(自身を除く): 289480380

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, 313289, 626578, 939867, 1253156, 1566445, 1879734, 2193023, 3132890, 3759468, 4386046, 4699335, 6265780, 6579069, 8772092, 9398670, 10965115, 13158138, 18797340, 21930230, 26316276, 32895345, 43860460, 65790690, 131581380]

約数ペア:

[(1, 131581380), (2, 65790690), (3, 43860460), (4, 32895345), (5, 26316276), (6, 21930230), (7, 18797340), (10, 13158138), (12, 10965115), (14, 9398670), (15, 8772092), (20, 6579069), (21, 6265780), (28, 4699335), (30, 4386046), (35, 3759468), (42, 3132890), (60, 2193023), (70, 1879734), (84, 1566445), (105, 1253156), (140, 939867), (210, 626578), (420, 313289)]