290208460

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{89021}}^1$

素因数の和:89193

約数の個数: 24

約数和(自身を含む): 613183536

約数和(自身を除く): 322975076

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 89021, 178042, 356084, 445105, 890210, 1780420, 14510423, 29020846, 58041692, 72552115, 145104230, 290208460]

約数ペア:

[(1, 290208460), (2, 145104230), (4, 72552115), (5, 58041692), (10, 29020846), (20, 14510423), (163, 1780420), (326, 890210), (652, 445105), (815, 356084), (1630, 178042), (3260, 89021)]