9991380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{23789}}^1$

素因数の和:23808

約数の個数: 48

約数和(自身を含む): 31973760

約数和(自身を除く): 21982380

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, 23789, 47578, 71367, 95156, 118945, 142734, 166523, 237890, 285468, 333046, 356835, 475780, 499569, 666092, 713670, 832615, 999138, 1427340, 1665230, 1998276, 2497845, 3330460, 4995690, 9991380]

約数ペア:

[(1, 9991380), (2, 4995690), (3, 3330460), (4, 2497845), (5, 1998276), (6, 1665230), (7, 1427340), (10, 999138), (12, 832615), (14, 713670), (15, 666092), (20, 499569), (21, 475780), (28, 356835), (30, 333046), (35, 285468), (42, 237890), (60, 166523), (70, 142734), (84, 118945), (105, 95156), (140, 71367), (210, 47578), (420, 23789)]