81715752

素因数分解:

$2^3\times 3^2\times {\mathrm{31}}^2\times {\mathrm{1181}}^1$

素因数の和:1255

約数の個数: 72

約数和(自身を含む): 228876570

約数和(自身を除く): 147160818

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 31, 36, 62, 72, 93, 124, 186, 248, 279, 372, 558, 744, 961, 1116, 1181, 1922, 2232, 2362, 2883, 3543, 3844, 4724, 5766, 7086, 7688, 8649, 9448, 10629, 11532, 14172, 17298, 21258, 23064, 28344, 34596, 36611, 42516, 69192, 73222, 85032, 109833, 146444, 219666, 292888, 329499, 439332, 658998, 878664, 1134941, 1317996, 2269882, 2635992, 3404823, 4539764, 6809646, 9079528, 10214469, 13619292, 20428938, 27238584, 40857876, 81715752]

約数ペア:

[(1, 81715752), (2, 40857876), (3, 27238584), (4, 20428938), (6, 13619292), (8, 10214469), (9, 9079528), (12, 6809646), (18, 4539764), (24, 3404823), (31, 2635992), (36, 2269882), (62, 1317996), (72, 1134941), (93, 878664), (124, 658998), (186, 439332), (248, 329499), (279, 292888), (372, 219666), (558, 146444), (744, 109833), (961, 85032), (1116, 73222), (1181, 69192), (1922, 42516), (2232, 36611), (2362, 34596), (2883, 28344), (3543, 23064), (3844, 21258), (4724, 17298), (5766, 14172), (7086, 11532), (7688, 10629), (8649, 9448)]