18496720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21019}}^1$

素因数の和:21043

約数の個数: 40

約数和(自身を含む): 46916640

約数和(自身を除く): 28419920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 21019, 42038, 84076, 105095, 168152, 210190, 231209, 336304, 420380, 462418, 840760, 924836, 1156045, 1681520, 1849672, 2312090, 3699344, 4624180, 9248360, 18496720]

約数ペア:

[(1, 18496720), (2, 9248360), (4, 4624180), (5, 3699344), (8, 2312090), (10, 1849672), (11, 1681520), (16, 1156045), (20, 924836), (22, 840760), (40, 462418), (44, 420380), (55, 336304), (80, 231209), (88, 210190), (110, 168152), (176, 105095), (220, 84076), (440, 42038), (880, 21019)]