65997560

素因数分解:

$2^3\times 5^1\times {\mathrm{1171}}^1\times {\mathrm{1409}}^1$

素因数の和:2591

約数の個数: 32

約数和(自身を含む): 148726800

約数和(自身を除く): 82729240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1171, 1409, 2342, 2818, 4684, 5636, 5855, 7045, 9368, 11272, 11710, 14090, 23420, 28180, 46840, 56360, 1649939, 3299878, 6599756, 8249695, 13199512, 16499390, 32998780, 65997560]

約数ペア:

[(1, 65997560), (2, 32998780), (4, 16499390), (5, 13199512), (8, 8249695), (10, 6599756), (20, 3299878), (40, 1649939), (1171, 56360), (1409, 46840), (2342, 28180), (2818, 23420), (4684, 14090), (5636, 11710), (5855, 11272), (7045, 9368)]