28320500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{4357}}^1$

素因数の和:4389

約数の個数: 48

約数和(自身を含む): 66625104

約数和(自身を除く): 38304604

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 1300, 1625, 3250, 4357, 6500, 8714, 17428, 21785, 43570, 56641, 87140, 108925, 113282, 217850, 226564, 283205, 435700, 544625, 566410, 1089250, 1132820, 1416025, 2178500, 2832050, 5664100, 7080125, 14160250, 28320500]

約数ペア:

[(1, 28320500), (2, 14160250), (4, 7080125), (5, 5664100), (10, 2832050), (13, 2178500), (20, 1416025), (25, 1132820), (26, 1089250), (50, 566410), (52, 544625), (65, 435700), (100, 283205), (125, 226564), (130, 217850), (250, 113282), (260, 108925), (325, 87140), (500, 56641), (650, 43570), (1300, 21785), (1625, 17428), (3250, 8714), (4357, 6500)]