278300730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{215737}}^1$

素因数の和:215790

約数の個数: 32

約数和(自身を含む): 683457984

約数和(自身を除く): 405157254

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 215737, 431474, 647211, 1078685, 1294422, 2157370, 3236055, 6472110, 9276691, 18553382, 27830073, 46383455, 55660146, 92766910, 139150365, 278300730]

約数ペア:

[(1, 278300730), (2, 139150365), (3, 92766910), (5, 55660146), (6, 46383455), (10, 27830073), (15, 18553382), (30, 9276691), (43, 6472110), (86, 3236055), (129, 2157370), (215, 1294422), (258, 1078685), (430, 647211), (645, 431474), (1290, 215737)]