1309380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 3716160

約数和(自身を除く): 2406780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 139, 157, 278, 314, 417, 471, 556, 628, 695, 785, 834, 942, 1390, 1570, 1668, 1884, 2085, 2355, 2780, 3140, 4170, 4710, 8340, 9420, 21823, 43646, 65469, 87292, 109115, 130938, 218230, 261876, 327345, 436460, 654690, 1309380]

約数ペア:

[(1, 1309380), (2, 654690), (3, 436460), (4, 327345), (5, 261876), (6, 218230), (10, 130938), (12, 109115), (15, 87292), (20, 65469), (30, 43646), (60, 21823), (139, 9420), (157, 8340), (278, 4710), (314, 4170), (417, 3140), (471, 2780), (556, 2355), (628, 2085), (695, 1884), (785, 1668), (834, 1570), (942, 1390)]