20244976720

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{6172249}}^1$

素因数の和:6172303

約数の個数: 40

約数和(自身を含む): 48217617000

約数和(自身を除く): 27972640280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 6172249, 12344498, 24688996, 30861245, 49377992, 61722490, 98755984, 123444980, 246889960, 253062209, 493779920, 506124418, 1012248836, 1265311045, 2024497672, 2530622090, 4048995344, 5061244180, 10122488360, 20244976720]

約数ペア:

[(1, 20244976720), (2, 10122488360), (4, 5061244180), (5, 4048995344), (8, 2530622090), (10, 2024497672), (16, 1265311045), (20, 1012248836), (40, 506124418), (41, 493779920), (80, 253062209), (82, 246889960), (164, 123444980), (205, 98755984), (328, 61722490), (410, 49377992), (656, 30861245), (820, 24688996), (1640, 12344498), (3280, 6172249)]