305751290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{138349}}^1$

素因数の和:138386

約数の個数: 32

約数和(自身を含む): 627555600

約数和(自身を除く): 321804310

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 138349, 276698, 691745, 1383490, 1798537, 2351933, 3597074, 4703866, 8992685, 11759665, 17985370, 23519330, 30575129, 61150258, 152875645, 305751290]

約数ペア:

[(1, 305751290), (2, 152875645), (5, 61150258), (10, 30575129), (13, 23519330), (17, 17985370), (26, 11759665), (34, 8992685), (65, 4703866), (85, 3597074), (130, 2351933), (170, 1798537), (221, 1383490), (442, 691745), (1105, 276698), (2210, 138349)]