642245786

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{1699}}^1$

素因数の和:1819

約数の個数: 64

約数和(自身を含む): 1242931200

約数和(自身を除く): 600685414

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 67, 91, 134, 182, 217, 403, 434, 469, 806, 871, 938, 1699, 1742, 2077, 2821, 3398, 4154, 5642, 6097, 11893, 12194, 14539, 22087, 23786, 27001, 29078, 44174, 52669, 54002, 105338, 113833, 154609, 189007, 227666, 309218, 368683, 378014, 684697, 737366, 796831, 1369394, 1479829, 1593662, 2959658, 3528823, 4792879, 7057646, 9585758, 10358803, 20717606, 24701761, 45874699, 49403522, 91749398, 321122893, 642245786]

約数ペア:

[(1, 642245786), (2, 321122893), (7, 91749398), (13, 49403522), (14, 45874699), (26, 24701761), (31, 20717606), (62, 10358803), (67, 9585758), (91, 7057646), (134, 4792879), (182, 3528823), (217, 2959658), (403, 1593662), (434, 1479829), (469, 1369394), (806, 796831), (871, 737366), (938, 684697), (1699, 378014), (1742, 368683), (2077, 309218), (2821, 227666), (3398, 189007), (4154, 154609), (5642, 113833), (6097, 105338), (11893, 54002), (12194, 52669), (14539, 44174), (22087, 29078), (23786, 27001)]