68994040

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{12409}}^1$

素因数の和:12559

約数の個数: 32

約数和(自身を含む): 156366000

約数和(自身を除く): 87371960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 12409, 24818, 49636, 62045, 99272, 124090, 248180, 496360, 1724851, 3449702, 6899404, 8624255, 13798808, 17248510, 34497020, 68994040]

約数ペア:

[(1, 68994040), (2, 34497020), (4, 17248510), (5, 13798808), (8, 8624255), (10, 6899404), (20, 3449702), (40, 1724851), (139, 496360), (278, 248180), (556, 124090), (695, 99272), (1112, 62045), (1390, 49636), (2780, 24818), (5560, 12409)]