210880540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{17257}}^1$

素因数の和:17326

約数の個数: 48

約数和(自身を含む): 487089792

約数和(自身を除く): 276209252

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 188, 235, 260, 470, 611, 940, 1222, 2444, 3055, 6110, 12220, 17257, 34514, 69028, 86285, 172570, 224341, 345140, 448682, 811079, 897364, 1121705, 1622158, 2243410, 3244316, 4055395, 4486820, 8110790, 10544027, 16221580, 21088054, 42176108, 52720135, 105440270, 210880540]

約数ペア:

[(1, 210880540), (2, 105440270), (4, 52720135), (5, 42176108), (10, 21088054), (13, 16221580), (20, 10544027), (26, 8110790), (47, 4486820), (52, 4055395), (65, 3244316), (94, 2243410), (130, 1622158), (188, 1121705), (235, 897364), (260, 811079), (470, 448682), (611, 345140), (940, 224341), (1222, 172570), (2444, 86285), (3055, 69028), (6110, 34514), (12220, 17257)]