8321720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{18913}}^1$

素因数の和:18935

約数の個数: 32

約数和(自身を含む): 20427120

約数和(自身を除く): 12105400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 18913, 37826, 75652, 94565, 151304, 189130, 208043, 378260, 416086, 756520, 832172, 1040215, 1664344, 2080430, 4160860, 8321720]

約数ペア:

[(1, 8321720), (2, 4160860), (4, 2080430), (5, 1664344), (8, 1040215), (10, 832172), (11, 756520), (20, 416086), (22, 378260), (40, 208043), (44, 189130), (55, 151304), (88, 94565), (110, 75652), (220, 37826), (440, 18913)]