31198140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{353}}^1\times {\mathrm{491}}^1$

素因数の和:859

約数の個数: 72

約数和(自身を含む): 95095728

約数和(自身を除く): 63897588

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 353, 491, 706, 982, 1059, 1412, 1473, 1765, 1964, 2118, 2455, 2946, 3177, 3530, 4236, 4419, 4910, 5295, 5892, 6354, 7060, 7365, 8838, 9820, 10590, 12708, 14730, 15885, 17676, 21180, 22095, 29460, 31770, 44190, 63540, 88380, 173323, 346646, 519969, 693292, 866615, 1039938, 1559907, 1733230, 2079876, 2599845, 3119814, 3466460, 5199690, 6239628, 7799535, 10399380, 15599070, 31198140]

約数ペア:

[(1, 31198140), (2, 15599070), (3, 10399380), (4, 7799535), (5, 6239628), (6, 5199690), (9, 3466460), (10, 3119814), (12, 2599845), (15, 2079876), (18, 1733230), (20, 1559907), (30, 1039938), (36, 866615), (45, 693292), (60, 519969), (90, 346646), (180, 173323), (353, 88380), (491, 63540), (706, 44190), (982, 31770), (1059, 29460), (1412, 22095), (1473, 21180), (1765, 17676), (1964, 15885), (2118, 14730), (2455, 12708), (2946, 10590), (3177, 9820), (3530, 8838), (4236, 7365), (4419, 7060), (4910, 6354), (5295, 5892)]