161631756

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31397}}^1$

素因数の和:31431

約数の個数: 72

約数和(自身を含む): 480012624

約数和(自身を除く): 318380868

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 26, 33, 36, 39, 44, 52, 66, 78, 99, 117, 132, 143, 156, 198, 234, 286, 396, 429, 468, 572, 858, 1287, 1716, 2574, 5148, 31397, 62794, 94191, 125588, 188382, 282573, 345367, 376764, 408161, 565146, 690734, 816322, 1036101, 1130292, 1224483, 1381468, 1632644, 2072202, 2448966, 3108303, 3673449, 4144404, 4489771, 4897932, 6216606, 7346898, 8979542, 12433212, 13469313, 14693796, 17959084, 26938626, 40407939, 53877252, 80815878, 161631756]

約数ペア:

[(1, 161631756), (2, 80815878), (3, 53877252), (4, 40407939), (6, 26938626), (9, 17959084), (11, 14693796), (12, 13469313), (13, 12433212), (18, 8979542), (22, 7346898), (26, 6216606), (33, 4897932), (36, 4489771), (39, 4144404), (44, 3673449), (52, 3108303), (66, 2448966), (78, 2072202), (99, 1632644), (117, 1381468), (132, 1224483), (143, 1130292), (156, 1036101), (198, 816322), (234, 690734), (286, 565146), (396, 408161), (429, 376764), (468, 345367), (572, 282573), (858, 188382), (1287, 125588), (1716, 94191), (2574, 62794), (5148, 31397)]