20575020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{3853}}^1$

素因数の和:3954

約数の個数: 48

約数和(自身を含む): 58272480

約数和(自身を除く): 37697460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 89, 178, 267, 356, 445, 534, 890, 1068, 1335, 1780, 2670, 3853, 5340, 7706, 11559, 15412, 19265, 23118, 38530, 46236, 57795, 77060, 115590, 231180, 342917, 685834, 1028751, 1371668, 1714585, 2057502, 3429170, 4115004, 5143755, 6858340, 10287510, 20575020]

約数ペア:

[(1, 20575020), (2, 10287510), (3, 6858340), (4, 5143755), (5, 4115004), (6, 3429170), (10, 2057502), (12, 1714585), (15, 1371668), (20, 1028751), (30, 685834), (60, 342917), (89, 231180), (178, 115590), (267, 77060), (356, 57795), (445, 46236), (534, 38530), (890, 23118), (1068, 19265), (1335, 15412), (1780, 11559), (2670, 7706), (3853, 5340)]