220320256

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{419}}^1$

素因数の和:529

約数の個数: 80

約数和(自身を含む): 481219200

約数和(自身を除く): 260898944

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 79, 104, 128, 158, 208, 256, 316, 416, 419, 512, 632, 832, 838, 1027, 1264, 1664, 1676, 2054, 2528, 3328, 3352, 4108, 5056, 5447, 6656, 6704, 8216, 10112, 10894, 13408, 16432, 20224, 21788, 26816, 32864, 33101, 40448, 43576, 53632, 65728, 66202, 87152, 107264, 131456, 132404, 174304, 214528, 262912, 264808, 348608, 430313, 525824, 529616, 697216, 860626, 1059232, 1394432, 1721252, 2118464, 2788864, 3442504, 4236928, 6885008, 8473856, 13770016, 16947712, 27540032, 55080064, 110160128, 220320256]

約数ペア:

[(1, 220320256), (2, 110160128), (4, 55080064), (8, 27540032), (13, 16947712), (16, 13770016), (26, 8473856), (32, 6885008), (52, 4236928), (64, 3442504), (79, 2788864), (104, 2118464), (128, 1721252), (158, 1394432), (208, 1059232), (256, 860626), (316, 697216), (416, 529616), (419, 525824), (512, 430313), (632, 348608), (832, 264808), (838, 262912), (1027, 214528), (1264, 174304), (1664, 132404), (1676, 131456), (2054, 107264), (2528, 87152), (3328, 66202), (3352, 65728), (4108, 53632), (5056, 43576), (5447, 40448), (6656, 33101), (6704, 32864), (8216, 26816), (10112, 21788), (10894, 20224), (13408, 16432)]