20791264

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:140

約数の個数: 96

約数和(自身を含む): 48009024

約数和(自身を除く): 27217760

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 32, 41, 46, 52, 53, 82, 92, 104, 106, 164, 184, 208, 212, 299, 328, 368, 416, 424, 533, 598, 656, 689, 736, 848, 943, 1066, 1196, 1219, 1312, 1378, 1696, 1886, 2132, 2173, 2392, 2438, 2756, 3772, 4264, 4346, 4784, 4876, 5512, 7544, 8528, 8692, 9568, 9752, 11024, 12259, 15088, 15847, 17056, 17384, 19504, 22048, 24518, 28249, 30176, 31694, 34768, 39008, 49036, 49979, 56498, 63388, 69536, 98072, 99958, 112996, 126776, 196144, 199916, 225992, 253552, 392288, 399832, 451984, 507104, 649727, 799664, 903968, 1299454, 1599328, 2598908, 5197816, 10395632, 20791264]

約数ペア:

[(1, 20791264), (2, 10395632), (4, 5197816), (8, 2598908), (13, 1599328), (16, 1299454), (23, 903968), (26, 799664), (32, 649727), (41, 507104), (46, 451984), (52, 399832), (53, 392288), (82, 253552), (92, 225992), (104, 199916), (106, 196144), (164, 126776), (184, 112996), (208, 99958), (212, 98072), (299, 69536), (328, 63388), (368, 56498), (416, 49979), (424, 49036), (533, 39008), (598, 34768), (656, 31694), (689, 30176), (736, 28249), (848, 24518), (943, 22048), (1066, 19504), (1196, 17384), (1219, 17056), (1312, 15847), (1378, 15088), (1696, 12259), (1886, 11024), (2132, 9752), (2173, 9568), (2392, 8692), (2438, 8528), (2756, 7544), (3772, 5512), (4264, 4876), (4346, 4784)]