81662868

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{541}}^1\times {\mathrm{599}}^1$

素因数の和:1157

約数の個数: 72

約数和(自身を含む): 236745600

約数和(自身を除く): 155082732

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 541, 599, 1082, 1198, 1623, 1797, 2164, 2396, 3246, 3594, 3787, 4193, 4869, 5391, 6492, 7188, 7574, 8386, 9738, 10782, 11361, 12579, 15148, 16772, 19476, 21564, 22722, 25158, 34083, 37737, 45444, 50316, 68166, 75474, 136332, 150948, 324059, 648118, 972177, 1296236, 1944354, 2268413, 2916531, 3888708, 4536826, 5833062, 6805239, 9073652, 11666124, 13610478, 20415717, 27220956, 40831434, 81662868]

約数ペア:

[(1, 81662868), (2, 40831434), (3, 27220956), (4, 20415717), (6, 13610478), (7, 11666124), (9, 9073652), (12, 6805239), (14, 5833062), (18, 4536826), (21, 3888708), (28, 2916531), (36, 2268413), (42, 1944354), (63, 1296236), (84, 972177), (126, 648118), (252, 324059), (541, 150948), (599, 136332), (1082, 75474), (1198, 68166), (1623, 50316), (1797, 45444), (2164, 37737), (2396, 34083), (3246, 25158), (3594, 22722), (3787, 21564), (4193, 19476), (4869, 16772), (5391, 15148), (6492, 12579), (7188, 11361), (7574, 10782), (8386, 9738)]