19901024

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4349}}^1$

素因数の和:4383

約数の個数: 48

約数和(自身を含む): 46040400

約数和(自身を除く): 26139376

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 44, 52, 88, 104, 143, 176, 208, 286, 352, 416, 572, 1144, 2288, 4349, 4576, 8698, 17396, 34792, 47839, 56537, 69584, 95678, 113074, 139168, 191356, 226148, 382712, 452296, 621907, 765424, 904592, 1243814, 1530848, 1809184, 2487628, 4975256, 9950512, 19901024]

約数ペア:

[(1, 19901024), (2, 9950512), (4, 4975256), (8, 2487628), (11, 1809184), (13, 1530848), (16, 1243814), (22, 904592), (26, 765424), (32, 621907), (44, 452296), (52, 382712), (88, 226148), (104, 191356), (143, 139168), (176, 113074), (208, 95678), (286, 69584), (352, 56537), (416, 47839), (572, 34792), (1144, 17396), (2288, 8698), (4349, 4576)]