19504680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12503}}^1$

素因数の和:12530

約数の個数: 64

約数和(自身を含む): 63020160

約数和(自身を除く): 43515480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 12503, 25006, 37509, 50012, 62515, 75018, 100024, 125030, 150036, 162539, 187545, 250060, 300072, 325078, 375090, 487617, 500120, 650156, 750180, 812695, 975234, 1300312, 1500360, 1625390, 1950468, 2438085, 3250780, 3900936, 4876170, 6501560, 9752340, 19504680]

約数ペア:

[(1, 19504680), (2, 9752340), (3, 6501560), (4, 4876170), (5, 3900936), (6, 3250780), (8, 2438085), (10, 1950468), (12, 1625390), (13, 1500360), (15, 1300312), (20, 975234), (24, 812695), (26, 750180), (30, 650156), (39, 500120), (40, 487617), (52, 375090), (60, 325078), (65, 300072), (78, 250060), (104, 187545), (120, 162539), (130, 150036), (156, 125030), (195, 100024), (260, 75018), (312, 62515), (390, 50012), (520, 37509), (780, 25006), (1560, 12503)]