200904920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{122503}}^1$

素因数の和:122555

約数の個数: 32

約数和(自身を含む): 463065120

約数和(自身を除く): 262160200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 122503, 245006, 490012, 612515, 980024, 1225030, 2450060, 4900120, 5022623, 10045246, 20090492, 25113115, 40180984, 50226230, 100452460, 200904920]

約数ペア:

[(1, 200904920), (2, 100452460), (4, 50226230), (5, 40180984), (8, 25113115), (10, 20090492), (20, 10045246), (40, 5022623), (41, 4900120), (82, 2450060), (164, 1225030), (205, 980024), (328, 612515), (410, 490012), (820, 245006), (1640, 122503)]