18445520

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{2377}}^1$

素因数の和:2487

約数の個数: 40

約数和(自身を含む): 43346184

約数和(自身を除く): 24900664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 2377, 3880, 4754, 7760, 9508, 11885, 19016, 23770, 38032, 47540, 95080, 190160, 230569, 461138, 922276, 1152845, 1844552, 2305690, 3689104, 4611380, 9222760, 18445520]

約数ペア:

[(1, 18445520), (2, 9222760), (4, 4611380), (5, 3689104), (8, 2305690), (10, 1844552), (16, 1152845), (20, 922276), (40, 461138), (80, 230569), (97, 190160), (194, 95080), (388, 47540), (485, 38032), (776, 23770), (970, 19016), (1552, 11885), (1940, 9508), (2377, 7760), (3880, 4754)]