3969980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{4051}}^1$

素因数の和:4074

約数の個数: 36

約数和(自身を含む): 9700488

約数和(自身を除く): 5730508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 4051, 8102, 16204, 20255, 28357, 40510, 56714, 81020, 113428, 141785, 198499, 283570, 396998, 567140, 793996, 992495, 1984990, 3969980]

約数ペア:

[(1, 3969980), (2, 1984990), (4, 992495), (5, 793996), (7, 567140), (10, 396998), (14, 283570), (20, 198499), (28, 141785), (35, 113428), (49, 81020), (70, 56714), (98, 40510), (140, 28357), (196, 20255), (245, 16204), (490, 8102), (980, 4051)]