81660708

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{277}}^1\times {\mathrm{431}}^1$

素因数の和:737

約数の個数: 72

約数和(自身を含む): 218574720

約数和(自身を除く): 136914012

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 277, 342, 431, 554, 684, 831, 862, 1108, 1293, 1662, 1724, 2493, 2586, 3324, 3879, 4986, 5172, 5263, 7758, 8189, 9972, 10526, 15516, 15789, 16378, 21052, 24567, 31578, 32756, 47367, 49134, 63156, 73701, 94734, 98268, 119387, 147402, 189468, 238774, 294804, 358161, 477548, 716322, 1074483, 1432644, 2148966, 2268353, 4297932, 4536706, 6805059, 9073412, 13610118, 20415177, 27220236, 40830354, 81660708]

約数ペア:

[(1, 81660708), (2, 40830354), (3, 27220236), (4, 20415177), (6, 13610118), (9, 9073412), (12, 6805059), (18, 4536706), (19, 4297932), (36, 2268353), (38, 2148966), (57, 1432644), (76, 1074483), (114, 716322), (171, 477548), (228, 358161), (277, 294804), (342, 238774), (431, 189468), (554, 147402), (684, 119387), (831, 98268), (862, 94734), (1108, 73701), (1293, 63156), (1662, 49134), (1724, 47367), (2493, 32756), (2586, 31578), (3324, 24567), (3879, 21052), (4986, 16378), (5172, 15789), (5263, 15516), (7758, 10526), (8189, 9972)]