20516048

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1$

素因数の和:376

約数の個数: 80

約数和(自身を含む): 49520640

約数和(自身を除く): 29004592

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 31, 38, 56, 62, 76, 112, 124, 133, 152, 217, 248, 266, 304, 311, 434, 496, 532, 589, 622, 868, 1064, 1178, 1244, 1736, 2128, 2177, 2356, 2488, 3472, 4123, 4354, 4712, 4976, 5909, 8246, 8708, 9424, 9641, 11818, 16492, 17416, 19282, 23636, 32984, 34832, 38564, 41363, 47272, 65968, 67487, 77128, 82726, 94544, 134974, 154256, 165452, 183179, 269948, 330904, 366358, 539896, 661808, 732716, 1079792, 1282253, 1465432, 2564506, 2930864, 5129012, 10258024, 20516048]

約数ペア:

[(1, 20516048), (2, 10258024), (4, 5129012), (7, 2930864), (8, 2564506), (14, 1465432), (16, 1282253), (19, 1079792), (28, 732716), (31, 661808), (38, 539896), (56, 366358), (62, 330904), (76, 269948), (112, 183179), (124, 165452), (133, 154256), (152, 134974), (217, 94544), (248, 82726), (266, 77128), (304, 67487), (311, 65968), (434, 47272), (496, 41363), (532, 38564), (589, 34832), (622, 32984), (868, 23636), (1064, 19282), (1178, 17416), (1244, 16492), (1736, 11818), (2128, 9641), (2177, 9424), (2356, 8708), (2488, 8246), (3472, 5909), (4123, 4976), (4354, 4712)]