81986380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{13619}}^1$

素因数の和:13678

約数の個数: 48

約数和(自身を含む): 201358080

約数和(自身を除く): 119371700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 3010, 6020, 13619, 27238, 54476, 68095, 95333, 136190, 190666, 272380, 381332, 476665, 585617, 953330, 1171234, 1906660, 2342468, 2928085, 4099319, 5856170, 8198638, 11712340, 16397276, 20496595, 40993190, 81986380]

約数ペア:

[(1, 81986380), (2, 40993190), (4, 20496595), (5, 16397276), (7, 11712340), (10, 8198638), (14, 5856170), (20, 4099319), (28, 2928085), (35, 2342468), (43, 1906660), (70, 1171234), (86, 953330), (140, 585617), (172, 476665), (215, 381332), (301, 272380), (430, 190666), (602, 136190), (860, 95333), (1204, 68095), (1505, 54476), (3010, 27238), (6020, 13619)]