27799760

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20441}}^1$

素因数の和:20471

約数の個数: 40

約数和(自身を含む): 68439816

約数和(自身を除く): 40640056

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 20441, 40882, 81764, 102205, 163528, 204410, 327056, 347497, 408820, 694994, 817640, 1389988, 1635280, 1737485, 2779976, 3474970, 5559952, 6949940, 13899880, 27799760]

約数ペア:

[(1, 27799760), (2, 13899880), (4, 6949940), (5, 5559952), (8, 3474970), (10, 2779976), (16, 1737485), (17, 1635280), (20, 1389988), (34, 817640), (40, 694994), (68, 408820), (80, 347497), (85, 327056), (136, 204410), (170, 163528), (272, 102205), (340, 81764), (680, 40882), (1360, 20441)]