20201651320

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1199623}}^1$

素因数の和:1200055

約数の個数: 32

約数和(自身を含む): 45561719520

約数和(自身を除く): 25360068200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 3368, 4210, 8420, 16840, 1199623, 2399246, 4798492, 5998115, 9596984, 11996230, 23992460, 47984920, 505041283, 1010082566, 2020165132, 2525206415, 4040330264, 5050412830, 10100825660, 20201651320]

約数ペア:

[(1, 20201651320), (2, 10100825660), (4, 5050412830), (5, 4040330264), (8, 2525206415), (10, 2020165132), (20, 1010082566), (40, 505041283), (421, 47984920), (842, 23992460), (1684, 11996230), (2105, 9596984), (3368, 5998115), (4210, 4798492), (8420, 2399246), (16840, 1199623)]