18431740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2357}}^1$

素因数の和:2406

約数の個数: 48

約数和(自身を含む): 42783552

約数和(自身を除く): 24351812

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 230, 340, 391, 460, 782, 1564, 1955, 2357, 3910, 4714, 7820, 9428, 11785, 23570, 40069, 47140, 54211, 80138, 108422, 160276, 200345, 216844, 271055, 400690, 542110, 801380, 921587, 1084220, 1843174, 3686348, 4607935, 9215870, 18431740]

約数ペア:

[(1, 18431740), (2, 9215870), (4, 4607935), (5, 3686348), (10, 1843174), (17, 1084220), (20, 921587), (23, 801380), (34, 542110), (46, 400690), (68, 271055), (85, 216844), (92, 200345), (115, 160276), (170, 108422), (230, 80138), (340, 54211), (391, 47140), (460, 40069), (782, 23570), (1564, 11785), (1955, 9428), (2357, 7820), (3910, 4714)]