81216944

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{433}}^1\times {\mathrm{617}}^1$

素因数の和:1077

約数の個数: 40

約数和(自身を含む): 166291440

約数和(自身を除く): 85074496

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 433, 617, 866, 1234, 1732, 2468, 3464, 4936, 6928, 8227, 9872, 11723, 16454, 23446, 32908, 46892, 65816, 93784, 131632, 187568, 267161, 534322, 1068644, 2137288, 4274576, 5076059, 10152118, 20304236, 40608472, 81216944]

約数ペア:

[(1, 81216944), (2, 40608472), (4, 20304236), (8, 10152118), (16, 5076059), (19, 4274576), (38, 2137288), (76, 1068644), (152, 534322), (304, 267161), (433, 187568), (617, 131632), (866, 93784), (1234, 65816), (1732, 46892), (2468, 32908), (3464, 23446), (4936, 16454), (6928, 11723), (8227, 9872)]