128658640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{146203}}^1$

素因数の和:146227

約数の個数: 40

約数和(自身を含む): 326327328

約数和(自身を除く): 197668688

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 146203, 292406, 584812, 731015, 1169624, 1462030, 1608233, 2339248, 2924060, 3216466, 5848120, 6432932, 8041165, 11696240, 12865864, 16082330, 25731728, 32164660, 64329320, 128658640]

約数ペア:

[(1, 128658640), (2, 64329320), (4, 32164660), (5, 25731728), (8, 16082330), (10, 12865864), (11, 11696240), (16, 8041165), (20, 6432932), (22, 5848120), (40, 3216466), (44, 2924060), (55, 2339248), (80, 1608233), (88, 1462030), (110, 1169624), (176, 731015), (220, 584812), (440, 292406), (880, 146203)]