42051207140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{123680021}}^1$

素因数の和:123680047

約数の個数: 24

約数和(自身を含む): 93502096632

約数和(自身を除く): 51450889492

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 123680021, 247360042, 494720084, 618400105, 1236800210, 2102560357, 2473600420, 4205120714, 8410241428, 10512801785, 21025603570, 42051207140]

約数ペア:

[(1, 42051207140), (2, 21025603570), (4, 10512801785), (5, 8410241428), (10, 4205120714), (17, 2473600420), (20, 2102560357), (34, 1236800210), (68, 618400105), (85, 494720084), (170, 247360042), (340, 123680021)]