690291290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{312349}}^1$

素因数の和:312386

約数の個数: 32

約数和(自身を含む): 1416819600

約数和(自身を除く): 726528310

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 312349, 624698, 1561745, 3123490, 4060537, 5309933, 8121074, 10619866, 20302685, 26549665, 40605370, 53099330, 69029129, 138058258, 345145645, 690291290]

約数ペア:

[(1, 690291290), (2, 345145645), (5, 138058258), (10, 69029129), (13, 53099330), (17, 40605370), (26, 26549665), (34, 20302685), (65, 10619866), (85, 8121074), (130, 5309933), (170, 4060537), (221, 3123490), (442, 1561745), (1105, 624698), (2210, 312349)]