20512201984

素因数分解:

$2^8\times {\mathrm{419}}^1\times {\mathrm{191231}}^1$

素因数の和:191666

約数の個数: 36

約数和(自身を含む): 41042211840

約数和(自身を除く): 20530009856

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 419, 838, 1676, 3352, 6704, 13408, 26816, 53632, 107264, 191231, 382462, 764924, 1529848, 3059696, 6119392, 12238784, 24477568, 48955136, 80125789, 160251578, 320503156, 641006312, 1282012624, 2564025248, 5128050496, 10256100992, 20512201984]

約数ペア:

[(1, 20512201984), (2, 10256100992), (4, 5128050496), (8, 2564025248), (16, 1282012624), (32, 641006312), (64, 320503156), (128, 160251578), (256, 80125789), (419, 48955136), (838, 24477568), (1676, 12238784), (3352, 6119392), (6704, 3059696), (13408, 1529848), (26816, 764924), (53632, 382462), (107264, 191231)]