81796572

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{15889}}^1$

素因数の和:15923

約数の個数: 72

約数和(自身を含む): 242926320

約数和(自身を除く): 161129748

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, 15889, 31778, 47667, 63556, 95334, 143001, 174779, 190668, 206557, 286002, 349558, 413114, 524337, 572004, 619671, 699116, 826228, 1048674, 1239342, 1573011, 1859013, 2097348, 2272127, 2478684, 3146022, 3718026, 4544254, 6292044, 6816381, 7436052, 9088508, 13632762, 20449143, 27265524, 40898286, 81796572]

約数ペア:

[(1, 81796572), (2, 40898286), (3, 27265524), (4, 20449143), (6, 13632762), (9, 9088508), (11, 7436052), (12, 6816381), (13, 6292044), (18, 4544254), (22, 3718026), (26, 3146022), (33, 2478684), (36, 2272127), (39, 2097348), (44, 1859013), (52, 1573011), (66, 1239342), (78, 1048674), (99, 826228), (117, 699116), (132, 619671), (143, 572004), (156, 524337), (198, 413114), (234, 349558), (286, 286002), (396, 206557), (429, 190668), (468, 174779), (572, 143001), (858, 95334), (1287, 63556), (1716, 47667), (2574, 31778), (5148, 15889)]