27758960

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20411}}^1$

素因数の和:20441

約数の個数: 40

約数和(自身を含む): 68339376

約数和(自身を除く): 40580416

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 20411, 40822, 81644, 102055, 163288, 204110, 326576, 346987, 408220, 693974, 816440, 1387948, 1632880, 1734935, 2775896, 3469870, 5551792, 6939740, 13879480, 27758960]

約数ペア:

[(1, 27758960), (2, 13879480), (4, 6939740), (5, 5551792), (8, 3469870), (10, 2775896), (16, 1734935), (17, 1632880), (20, 1387948), (34, 816440), (40, 693974), (68, 408220), (80, 346987), (85, 326576), (136, 204110), (170, 163288), (272, 102055), (340, 81644), (680, 40822), (1360, 20411)]