20746156420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{493721}}^1$

素因数の和:493932

約数の個数: 48

約数和(自身を含む): 47776490496

約数和(自身を除く): 27030334076

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 191, 220, 382, 764, 955, 1910, 2101, 3820, 4202, 8404, 10505, 21010, 42020, 493721, 987442, 1974884, 2468605, 4937210, 5430931, 9874420, 10861862, 21723724, 27154655, 54309310, 94300711, 108618620, 188601422, 377202844, 471503555, 943007110, 1037307821, 1886014220, 2074615642, 4149231284, 5186539105, 10373078210, 20746156420]

約数ペア:

[(1, 20746156420), (2, 10373078210), (4, 5186539105), (5, 4149231284), (10, 2074615642), (11, 1886014220), (20, 1037307821), (22, 943007110), (44, 471503555), (55, 377202844), (110, 188601422), (191, 108618620), (220, 94300711), (382, 54309310), (764, 27154655), (955, 21723724), (1910, 10861862), (2101, 9874420), (3820, 5430931), (4202, 4937210), (8404, 2468605), (10505, 1974884), (21010, 987442), (42020, 493721)]