79198520

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{4703}}^1$

素因数の和:5135

約数の個数: 32

約数和(自身を含む): 178657920

約数和(自身を除く): 99459400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 3368, 4210, 4703, 8420, 9406, 16840, 18812, 23515, 37624, 47030, 94060, 188120, 1979963, 3959926, 7919852, 9899815, 15839704, 19799630, 39599260, 79198520]

約数ペア:

[(1, 79198520), (2, 39599260), (4, 19799630), (5, 15839704), (8, 9899815), (10, 7919852), (20, 3959926), (40, 1979963), (421, 188120), (842, 94060), (1684, 47030), (2105, 37624), (3368, 23515), (4210, 18812), (4703, 16840), (8420, 9406)]