397016920

素因数分解:

$2^3\times 5^1\times {\mathrm{2803}}^1\times {\mathrm{3541}}^1$

素因数の和:6355

約数の個数: 32

約数和(自身を含む): 893859120

約数和(自身を除く): 496842200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2803, 3541, 5606, 7082, 11212, 14015, 14164, 17705, 22424, 28030, 28328, 35410, 56060, 70820, 112120, 141640, 9925423, 19850846, 39701692, 49627115, 79403384, 99254230, 198508460, 397016920]

約数ペア:

[(1, 397016920), (2, 198508460), (4, 99254230), (5, 79403384), (8, 49627115), (10, 39701692), (20, 19850846), (40, 9925423), (2803, 141640), (3541, 112120), (5606, 70820), (7082, 56060), (11212, 35410), (14015, 28328), (14164, 28030), (17705, 22424)]