168688760

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{102859}}^1$

素因数の和:102911

約数の個数: 32

約数和(自身を含む): 388810800

約数和(自身を除く): 220122040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 102859, 205718, 411436, 514295, 822872, 1028590, 2057180, 4114360, 4217219, 8434438, 16868876, 21086095, 33737752, 42172190, 84344380, 168688760]

約数ペア:

[(1, 168688760), (2, 84344380), (4, 42172190), (5, 33737752), (8, 21086095), (10, 16868876), (20, 8434438), (40, 4217219), (41, 4114360), (82, 2057180), (164, 1028590), (205, 822872), (328, 514295), (410, 411436), (820, 205718), (1640, 102859)]