20353216

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1439}}^1$

素因数の和:1481

約数の個数: 56

約数和(自身を含む): 46085760

約数和(自身を除く): 25732544

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 64, 68, 104, 136, 208, 221, 272, 416, 442, 544, 832, 884, 1088, 1439, 1768, 2878, 3536, 5756, 7072, 11512, 14144, 18707, 23024, 24463, 37414, 46048, 48926, 74828, 92096, 97852, 149656, 195704, 299312, 318019, 391408, 598624, 636038, 782816, 1197248, 1272076, 1565632, 2544152, 5088304, 10176608, 20353216]

約数ペア:

[(1, 20353216), (2, 10176608), (4, 5088304), (8, 2544152), (13, 1565632), (16, 1272076), (17, 1197248), (26, 782816), (32, 636038), (34, 598624), (52, 391408), (64, 318019), (68, 299312), (104, 195704), (136, 149656), (208, 97852), (221, 92096), (272, 74828), (416, 48926), (442, 46048), (544, 37414), (832, 24463), (884, 23024), (1088, 18707), (1439, 14144), (1768, 11512), (2878, 7072), (3536, 5756)]