81640204

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{9043}}^1$

素因数の和:9145

約数の個数: 24

約数和(自身を含む): 149153648

約数和(自身を除く): 67513444

約数列:

[1, 2, 4, 37, 61, 74, 122, 148, 244, 2257, 4514, 9028, 9043, 18086, 36172, 334591, 551623, 669182, 1103246, 1338364, 2206492, 20410051, 40820102, 81640204]

約数ペア:

[(1, 81640204), (2, 40820102), (4, 20410051), (37, 2206492), (61, 1338364), (74, 1103246), (122, 669182), (148, 551623), (244, 334591), (2257, 36172), (4514, 18086), (9028, 9043)]