678440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{2423}}^1$

素因数の和:2441

約数の個数: 32

約数和(自身を含む): 1745280

約数和(自身を除く): 1066840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 2423, 4846, 9692, 12115, 16961, 19384, 24230, 33922, 48460, 67844, 84805, 96920, 135688, 169610, 339220, 678440]

約数ペア:

[(1, 678440), (2, 339220), (4, 169610), (5, 135688), (7, 96920), (8, 84805), (10, 67844), (14, 48460), (20, 33922), (28, 24230), (35, 19384), (40, 16961), (56, 12115), (70, 9692), (140, 4846), (280, 2423)]