80991090

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{99989}}^1$

素因数の和:100008

約数の個数: 40

約数和(自身を含む): 217778220

約数和(自身を除く): 136787130

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 99989, 199978, 299967, 499945, 599934, 899901, 999890, 1499835, 1799802, 2699703, 2999670, 4499505, 5399406, 8099109, 8999010, 13498515, 16198218, 26997030, 40495545, 80991090]

約数ペア:

[(1, 80991090), (2, 40495545), (3, 26997030), (5, 16198218), (6, 13498515), (9, 8999010), (10, 8099109), (15, 5399406), (18, 4499505), (27, 2999670), (30, 2699703), (45, 1799802), (54, 1499835), (81, 999890), (90, 899901), (135, 599934), (162, 499945), (270, 299967), (405, 199978), (810, 99989)]