19566880

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4217}}^1$

素因数の和:4261

約数の個数: 48

約数和(自身を含む): 47832120

約数和(自身を除く): 28265240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 232, 290, 464, 580, 928, 1160, 2320, 4217, 4640, 8434, 16868, 21085, 33736, 42170, 67472, 84340, 122293, 134944, 168680, 244586, 337360, 489172, 611465, 674720, 978344, 1222930, 1956688, 2445860, 3913376, 4891720, 9783440, 19566880]

約数ペア:

[(1, 19566880), (2, 9783440), (4, 4891720), (5, 3913376), (8, 2445860), (10, 1956688), (16, 1222930), (20, 978344), (29, 674720), (32, 611465), (40, 489172), (58, 337360), (80, 244586), (116, 168680), (145, 134944), (160, 122293), (232, 84340), (290, 67472), (464, 42170), (580, 33736), (928, 21085), (1160, 16868), (2320, 8434), (4217, 4640)]