28947680

素因数分解:

$2^5\times 5^1\times {\mathrm{239}}^1\times {\mathrm{757}}^1$

素因数の和:1011

約数の個数: 48

約数和(自身を含む): 68765760

約数和(自身を除く): 39818080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 239, 478, 757, 956, 1195, 1514, 1912, 2390, 3028, 3785, 3824, 4780, 6056, 7570, 7648, 9560, 12112, 15140, 19120, 24224, 30280, 38240, 60560, 121120, 180923, 361846, 723692, 904615, 1447384, 1809230, 2894768, 3618460, 5789536, 7236920, 14473840, 28947680]

約数ペア:

[(1, 28947680), (2, 14473840), (4, 7236920), (5, 5789536), (8, 3618460), (10, 2894768), (16, 1809230), (20, 1447384), (32, 904615), (40, 723692), (80, 361846), (160, 180923), (239, 121120), (478, 60560), (757, 38240), (956, 30280), (1195, 24224), (1514, 19120), (1912, 15140), (2390, 12112), (3028, 9560), (3785, 7648), (3824, 7570), (4780, 6056)]