19142560

素因数分解:

$2^5\times 5^1\times {\mathrm{181}}^1\times {\mathrm{661}}^1$

素因数の和:857

約数の個数: 48

約数和(自身を含む): 45542952

約数和(自身を除く): 26400392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 181, 362, 661, 724, 905, 1322, 1448, 1810, 2644, 2896, 3305, 3620, 5288, 5792, 6610, 7240, 10576, 13220, 14480, 21152, 26440, 28960, 52880, 105760, 119641, 239282, 478564, 598205, 957128, 1196410, 1914256, 2392820, 3828512, 4785640, 9571280, 19142560]

約数ペア:

[(1, 19142560), (2, 9571280), (4, 4785640), (5, 3828512), (8, 2392820), (10, 1914256), (16, 1196410), (20, 957128), (32, 598205), (40, 478564), (80, 239282), (160, 119641), (181, 105760), (362, 52880), (661, 28960), (724, 26440), (905, 21152), (1322, 14480), (1448, 13220), (1810, 10576), (2644, 7240), (2896, 6610), (3305, 5792), (3620, 5288)]