20219264

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{419}}^1$

素因数の和:475

約数の個数: 64

約数和(自身を含む): 44982000

約数和(自身を除く): 24762736

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 32, 52, 58, 64, 104, 116, 128, 208, 232, 377, 416, 419, 464, 754, 832, 838, 928, 1508, 1664, 1676, 1856, 3016, 3352, 3712, 5447, 6032, 6704, 10894, 12064, 12151, 13408, 21788, 24128, 24302, 26816, 43576, 48256, 48604, 53632, 87152, 97208, 157963, 174304, 194416, 315926, 348608, 388832, 631852, 697216, 777664, 1263704, 1555328, 2527408, 5054816, 10109632, 20219264]

約数ペア:

[(1, 20219264), (2, 10109632), (4, 5054816), (8, 2527408), (13, 1555328), (16, 1263704), (26, 777664), (29, 697216), (32, 631852), (52, 388832), (58, 348608), (64, 315926), (104, 194416), (116, 174304), (128, 157963), (208, 97208), (232, 87152), (377, 53632), (416, 48604), (419, 48256), (464, 43576), (754, 26816), (832, 24302), (838, 24128), (928, 21788), (1508, 13408), (1664, 12151), (1676, 12064), (1856, 10894), (3016, 6704), (3352, 6032), (3712, 5447)]