261537520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{192307}}^1$

素因数の和:192337

約数の個数: 40

約数和(自身を含む): 643847184

約数和(自身を除く): 382309664

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 192307, 384614, 769228, 961535, 1538456, 1923070, 3076912, 3269219, 3846140, 6538438, 7692280, 13076876, 15384560, 16346095, 26153752, 32692190, 52307504, 65384380, 130768760, 261537520]

約数ペア:

[(1, 261537520), (2, 130768760), (4, 65384380), (5, 52307504), (8, 32692190), (10, 26153752), (16, 16346095), (17, 15384560), (20, 13076876), (34, 7692280), (40, 6538438), (68, 3846140), (80, 3269219), (85, 3076912), (136, 1923070), (170, 1538456), (272, 961535), (340, 769228), (680, 384614), (1360, 192307)]