20008601757

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{41}}^2\times {\mathrm{47}}^1\times {\mathrm{1481}}^1$

素因数の和:1635

約数の個数: 72

約数和(自身を含む): 31867505280

約数和(自身を除く): 11858903523

約数列:

[1, 3, 9, 19, 41, 47, 57, 123, 141, 171, 369, 423, 779, 893, 1481, 1681, 1927, 2337, 2679, 4443, 5043, 5781, 7011, 8037, 13329, 15129, 17343, 28139, 31939, 36613, 60721, 69607, 79007, 84417, 95817, 109839, 182163, 208821, 237021, 253251, 287451, 329517, 546489, 626463, 711063, 1153699, 1322533, 1501133, 2489561, 2853887, 3461097, 3967599, 4503399, 7468683, 8561661, 10383291, 11902797, 13510197, 22406049, 25684983, 47301659, 54223853, 117009367, 141904977, 162671559, 351028101, 425714931, 488014677, 1053084303, 2223177973, 6669533919, 20008601757]

約数ペア:

[(1, 20008601757), (3, 6669533919), (9, 2223177973), (19, 1053084303), (41, 488014677), (47, 425714931), (57, 351028101), (123, 162671559), (141, 141904977), (171, 117009367), (369, 54223853), (423, 47301659), (779, 25684983), (893, 22406049), (1481, 13510197), (1681, 11902797), (1927, 10383291), (2337, 8561661), (2679, 7468683), (4443, 4503399), (5043, 3967599), (5781, 3461097), (7011, 2853887), (8037, 2489561), (13329, 1501133), (15129, 1322533), (17343, 1153699), (28139, 711063), (31939, 626463), (36613, 546489), (60721, 329517), (69607, 287451), (79007, 253251), (84417, 237021), (95817, 208821), (109839, 182163)]