3948980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{421}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 9641856

約数和(自身を除く): 5692876

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 268, 335, 421, 469, 670, 842, 938, 1340, 1684, 1876, 2105, 2345, 2947, 4210, 4690, 5894, 8420, 9380, 11788, 14735, 28207, 29470, 56414, 58940, 112828, 141035, 197449, 282070, 394898, 564140, 789796, 987245, 1974490, 3948980]

約数ペア:

[(1, 3948980), (2, 1974490), (4, 987245), (5, 789796), (7, 564140), (10, 394898), (14, 282070), (20, 197449), (28, 141035), (35, 112828), (67, 58940), (70, 56414), (134, 29470), (140, 28207), (268, 14735), (335, 11788), (421, 9380), (469, 8420), (670, 5894), (842, 4690), (938, 4210), (1340, 2947), (1684, 2345), (1876, 2105)]