19861874320

素因数分解:

$2^4\times 5^1\times {\mathrm{563}}^1\times {\mathrm{440983}}^1$

素因数の和:441559

約数の個数: 40

約数和(自身を含む): 46260985536

約数和(自身を除く): 26399111216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 563, 1126, 2252, 2815, 4504, 5630, 9008, 11260, 22520, 45040, 440983, 881966, 1763932, 2204915, 3527864, 4409830, 7055728, 8819660, 17639320, 35278640, 248273429, 496546858, 993093716, 1241367145, 1986187432, 2482734290, 3972374864, 4965468580, 9930937160, 19861874320]

約数ペア:

[(1, 19861874320), (2, 9930937160), (4, 4965468580), (5, 3972374864), (8, 2482734290), (10, 1986187432), (16, 1241367145), (20, 993093716), (40, 496546858), (80, 248273429), (563, 35278640), (1126, 17639320), (2252, 8819660), (2815, 7055728), (4504, 4409830), (5630, 3527864), (9008, 2204915), (11260, 1763932), (22520, 881966), (45040, 440983)]