20022340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1453}}^1$

素因数の和:1528

約数の個数: 48

約数和(自身を含む): 46167408

約数和(自身を除く): 26145068

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 689, 1060, 1378, 1453, 2756, 2906, 3445, 5812, 6890, 7265, 13780, 14530, 18889, 29060, 37778, 75556, 77009, 94445, 154018, 188890, 308036, 377780, 385045, 770090, 1001117, 1540180, 2002234, 4004468, 5005585, 10011170, 20022340]

約数ペア:

[(1, 20022340), (2, 10011170), (4, 5005585), (5, 4004468), (10, 2002234), (13, 1540180), (20, 1001117), (26, 770090), (52, 385045), (53, 377780), (65, 308036), (106, 188890), (130, 154018), (212, 94445), (260, 77009), (265, 75556), (530, 37778), (689, 29060), (1060, 18889), (1378, 14530), (1453, 13780), (2756, 7265), (2906, 6890), (3445, 5812)]