19849280

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5639}}^1$

素因数の和:5667

約数の個数: 56

約数和(自身を含む): 51572160

約数和(自身を除く): 31722880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 440, 704, 880, 1760, 3520, 5639, 11278, 22556, 28195, 45112, 56390, 62029, 90224, 112780, 124058, 180448, 225560, 248116, 310145, 360896, 451120, 496232, 620290, 902240, 992464, 1240580, 1804480, 1984928, 2481160, 3969856, 4962320, 9924640, 19849280]

約数ペア:

[(1, 19849280), (2, 9924640), (4, 4962320), (5, 3969856), (8, 2481160), (10, 1984928), (11, 1804480), (16, 1240580), (20, 992464), (22, 902240), (32, 620290), (40, 496232), (44, 451120), (55, 360896), (64, 310145), (80, 248116), (88, 225560), (110, 180448), (160, 124058), (176, 112780), (220, 90224), (320, 62029), (352, 56390), (440, 45112), (704, 28195), (880, 22556), (1760, 11278), (3520, 5639)]