27886970

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{4001}}^1$

素因数の和:4066

約数の個数: 32

約数和(自身を含む): 54459216

約数和(自身を除く): 26572246

約数列:

[1, 2, 5, 10, 17, 34, 41, 82, 85, 170, 205, 410, 697, 1394, 3485, 4001, 6970, 8002, 20005, 40010, 68017, 136034, 164041, 328082, 340085, 680170, 820205, 1640410, 2788697, 5577394, 13943485, 27886970]

約数ペア:

[(1, 27886970), (2, 13943485), (5, 5577394), (10, 2788697), (17, 1640410), (34, 820205), (41, 680170), (82, 340085), (85, 328082), (170, 164041), (205, 136034), (410, 68017), (697, 40010), (1394, 20005), (3485, 8002), (4001, 6970)]