20385856

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{457}}^1$

素因数の和:527

約数の個数: 56

約数和(自身を含む): 43973496

約数和(自身を除く): 23587640

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 41, 64, 68, 82, 136, 164, 272, 328, 457, 544, 656, 697, 914, 1088, 1312, 1394, 1828, 2624, 2788, 3656, 5576, 7312, 7769, 11152, 14624, 15538, 18737, 22304, 29248, 31076, 37474, 44608, 62152, 74948, 124304, 149896, 248608, 299792, 318529, 497216, 599584, 637058, 1199168, 1274116, 2548232, 5096464, 10192928, 20385856]

約数ペア:

[(1, 20385856), (2, 10192928), (4, 5096464), (8, 2548232), (16, 1274116), (17, 1199168), (32, 637058), (34, 599584), (41, 497216), (64, 318529), (68, 299792), (82, 248608), (136, 149896), (164, 124304), (272, 74948), (328, 62152), (457, 44608), (544, 37474), (656, 31076), (697, 29248), (914, 22304), (1088, 18737), (1312, 15538), (1394, 14624), (1828, 11152), (2624, 7769), (2788, 7312), (3656, 5576)]