20579700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{181}}^1\times {\mathrm{379}}^1$

素因数の和:577

約数の個数: 72

約数和(自身を含む): 60030880

約数和(自身を除く): 39451180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 181, 300, 362, 379, 543, 724, 758, 905, 1086, 1137, 1516, 1810, 1895, 2172, 2274, 2715, 3620, 3790, 4525, 4548, 5430, 5685, 7580, 9050, 9475, 10860, 11370, 13575, 18100, 18950, 22740, 27150, 28425, 37900, 54300, 56850, 68599, 113700, 137198, 205797, 274396, 342995, 411594, 685990, 823188, 1028985, 1371980, 1714975, 2057970, 3429950, 4115940, 5144925, 6859900, 10289850, 20579700]

約数ペア:

[(1, 20579700), (2, 10289850), (3, 6859900), (4, 5144925), (5, 4115940), (6, 3429950), (10, 2057970), (12, 1714975), (15, 1371980), (20, 1028985), (25, 823188), (30, 685990), (50, 411594), (60, 342995), (75, 274396), (100, 205797), (150, 137198), (181, 113700), (300, 68599), (362, 56850), (379, 54300), (543, 37900), (724, 28425), (758, 27150), (905, 22740), (1086, 18950), (1137, 18100), (1516, 13575), (1810, 11370), (1895, 10860), (2172, 9475), (2274, 9050), (2715, 7580), (3620, 5685), (3790, 5430), (4525, 4548)]