28847868

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{691}}^1$

素因数の和:783

約数の個数: 72

約数和(自身を含む): 79519104

約数和(自身を除く): 50671236

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 71, 84, 98, 142, 147, 196, 213, 284, 294, 426, 497, 588, 691, 852, 994, 1382, 1491, 1988, 2073, 2764, 2982, 3479, 4146, 4837, 5964, 6958, 8292, 9674, 10437, 13916, 14511, 19348, 20874, 29022, 33859, 41748, 49061, 58044, 67718, 98122, 101577, 135436, 147183, 196244, 203154, 294366, 343427, 406308, 588732, 686854, 1030281, 1373708, 2060562, 2403989, 4121124, 4807978, 7211967, 9615956, 14423934, 28847868]

約数ペア:

[(1, 28847868), (2, 14423934), (3, 9615956), (4, 7211967), (6, 4807978), (7, 4121124), (12, 2403989), (14, 2060562), (21, 1373708), (28, 1030281), (42, 686854), (49, 588732), (71, 406308), (84, 343427), (98, 294366), (142, 203154), (147, 196244), (196, 147183), (213, 135436), (284, 101577), (294, 98122), (426, 67718), (497, 58044), (588, 49061), (691, 41748), (852, 33859), (994, 29022), (1382, 20874), (1491, 19348), (1988, 14511), (2073, 13916), (2764, 10437), (2982, 9674), (3479, 8292), (4146, 6958), (4837, 5964)]