16212760

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{991}}^1$

素因数の和:1411

約数の個数: 32

約数和(自身を含む): 36604800

約数和(自身を除く): 20392040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 991, 1636, 1982, 2045, 3272, 3964, 4090, 4955, 7928, 8180, 9910, 16360, 19820, 39640, 405319, 810638, 1621276, 2026595, 3242552, 4053190, 8106380, 16212760]

約数ペア:

[(1, 16212760), (2, 8106380), (4, 4053190), (5, 3242552), (8, 2026595), (10, 1621276), (20, 810638), (40, 405319), (409, 39640), (818, 19820), (991, 16360), (1636, 9910), (1982, 8180), (2045, 7928), (3272, 4955), (3964, 4090)]