20296120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1697}}^1$

素因数の和:1744

約数の個数: 64

約数和(自身を含む): 51347520

約数和(自身を除く): 31051400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 92, 104, 115, 130, 184, 230, 260, 299, 460, 520, 598, 920, 1196, 1495, 1697, 2392, 2990, 3394, 5980, 6788, 8485, 11960, 13576, 16970, 22061, 33940, 39031, 44122, 67880, 78062, 88244, 110305, 156124, 176488, 195155, 220610, 312248, 390310, 441220, 507403, 780620, 882440, 1014806, 1561240, 2029612, 2537015, 4059224, 5074030, 10148060, 20296120]

約数ペア:

[(1, 20296120), (2, 10148060), (4, 5074030), (5, 4059224), (8, 2537015), (10, 2029612), (13, 1561240), (20, 1014806), (23, 882440), (26, 780620), (40, 507403), (46, 441220), (52, 390310), (65, 312248), (92, 220610), (104, 195155), (115, 176488), (130, 156124), (184, 110305), (230, 88244), (260, 78062), (299, 67880), (460, 44122), (520, 39031), (598, 33940), (920, 22061), (1196, 16970), (1495, 13576), (1697, 11960), (2392, 8485), (2990, 6788), (3394, 5980)]