163291280

素因数分解:

$2^4\times 5^1\times {\mathrm{1399}}^1\times {\mathrm{1459}}^1$

素因数の和:2871

約数の個数: 40

約数和(自身を含む): 380184000

約数和(自身を除く): 216892720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1399, 1459, 2798, 2918, 5596, 5836, 6995, 7295, 11192, 11672, 13990, 14590, 22384, 23344, 27980, 29180, 55960, 58360, 111920, 116720, 2041141, 4082282, 8164564, 10205705, 16329128, 20411410, 32658256, 40822820, 81645640, 163291280]

約数ペア:

[(1, 163291280), (2, 81645640), (4, 40822820), (5, 32658256), (8, 20411410), (10, 16329128), (16, 10205705), (20, 8164564), (40, 4082282), (80, 2041141), (1399, 116720), (1459, 111920), (2798, 58360), (2918, 55960), (5596, 29180), (5836, 27980), (6995, 23344), (7295, 22384), (11192, 14590), (11672, 13990)]