21517600

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{2069}}^1$

素因数の和:2102

約数の個数: 72

約数和(自身を含む): 56597940

約数和(自身を除く): 35080340

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 130, 160, 200, 208, 260, 325, 400, 416, 520, 650, 800, 1040, 1300, 2069, 2080, 2600, 4138, 5200, 8276, 10345, 10400, 16552, 20690, 26897, 33104, 41380, 51725, 53794, 66208, 82760, 103450, 107588, 134485, 165520, 206900, 215176, 268970, 331040, 413800, 430352, 537940, 672425, 827600, 860704, 1075880, 1344850, 1655200, 2151760, 2689700, 4303520, 5379400, 10758800, 21517600]

約数ペア:

[(1, 21517600), (2, 10758800), (4, 5379400), (5, 4303520), (8, 2689700), (10, 2151760), (13, 1655200), (16, 1344850), (20, 1075880), (25, 860704), (26, 827600), (32, 672425), (40, 537940), (50, 430352), (52, 413800), (65, 331040), (80, 268970), (100, 215176), (104, 206900), (130, 165520), (160, 134485), (200, 107588), (208, 103450), (260, 82760), (325, 66208), (400, 53794), (416, 51725), (520, 41380), (650, 33104), (800, 26897), (1040, 20690), (1300, 16552), (2069, 10400), (2080, 10345), (2600, 8276), (4138, 5200)]