2000990920

素因数分解:

$2^3\times 5^1\times {\mathrm{569}}^1\times {\mathrm{87917}}^1$

素因数の和:88497

約数の個数: 32

約数和(自身を含む): 4510193400

約数和(自身を除く): 2509202480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 569, 1138, 2276, 2845, 4552, 5690, 11380, 22760, 87917, 175834, 351668, 439585, 703336, 879170, 1758340, 3516680, 50024773, 100049546, 200099092, 250123865, 400198184, 500247730, 1000495460, 2000990920]

約数ペア:

[(1, 2000990920), (2, 1000495460), (4, 500247730), (5, 400198184), (8, 250123865), (10, 200099092), (20, 100049546), (40, 50024773), (569, 3516680), (1138, 1758340), (2276, 879170), (2845, 703336), (4552, 439585), (5690, 351668), (11380, 175834), (22760, 87917)]