204313520

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{16267}}^1$

素因数の和:16437

約数の個数: 40

約数和(自身を含む): 478083984

約数和(自身を除く): 273770464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 2512, 3140, 6280, 12560, 16267, 32534, 65068, 81335, 130136, 162670, 260272, 325340, 650680, 1301360, 2553919, 5107838, 10215676, 12769595, 20431352, 25539190, 40862704, 51078380, 102156760, 204313520]

約数ペア:

[(1, 204313520), (2, 102156760), (4, 51078380), (5, 40862704), (8, 25539190), (10, 20431352), (16, 12769595), (20, 10215676), (40, 5107838), (80, 2553919), (157, 1301360), (314, 650680), (628, 325340), (785, 260272), (1256, 162670), (1570, 130136), (2512, 81335), (3140, 65068), (6280, 32534), (12560, 16267)]