28508272

素因数分解:

$2^4\times {\mathrm{13}}^3\times {\mathrm{811}}^1$

素因数の和:858

約数の個数: 40

約数和(自身を含む): 59909360

約数和(自身を除く): 31401088

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 811, 1352, 1622, 2197, 2704, 3244, 4394, 6488, 8788, 10543, 12976, 17576, 21086, 35152, 42172, 84344, 137059, 168688, 274118, 548236, 1096472, 1781767, 2192944, 3563534, 7127068, 14254136, 28508272]

約数ペア:

[(1, 28508272), (2, 14254136), (4, 7127068), (8, 3563534), (13, 2192944), (16, 1781767), (26, 1096472), (52, 548236), (104, 274118), (169, 168688), (208, 137059), (338, 84344), (676, 42172), (811, 35152), (1352, 21086), (1622, 17576), (2197, 12976), (2704, 10543), (3244, 8788), (4394, 6488)]