28836920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{569}}^1$

素因数の和:768

約数の個数: 64

約数和(自身を含む): 74692800

約数和(自身を除く): 45855880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 181, 280, 362, 569, 724, 905, 1138, 1267, 1448, 1810, 2276, 2534, 2845, 3620, 3983, 4552, 5068, 5690, 6335, 7240, 7966, 10136, 11380, 12670, 15932, 19915, 22760, 25340, 31864, 39830, 50680, 79660, 102989, 159320, 205978, 411956, 514945, 720923, 823912, 1029890, 1441846, 2059780, 2883692, 3604615, 4119560, 5767384, 7209230, 14418460, 28836920]

約数ペア:

[(1, 28836920), (2, 14418460), (4, 7209230), (5, 5767384), (7, 4119560), (8, 3604615), (10, 2883692), (14, 2059780), (20, 1441846), (28, 1029890), (35, 823912), (40, 720923), (56, 514945), (70, 411956), (140, 205978), (181, 159320), (280, 102989), (362, 79660), (569, 50680), (724, 39830), (905, 31864), (1138, 25340), (1267, 22760), (1448, 19915), (1810, 15932), (2276, 12670), (2534, 11380), (2845, 10136), (3620, 7966), (3983, 7240), (4552, 6335), (5068, 5690)]