12781320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2477}}^1$

素因数の和:2534

約数の個数: 64

約数和(自身を含む): 39251520

約数和(自身を除く): 26470200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 2477, 2580, 4954, 5160, 7431, 9908, 12385, 14862, 19816, 24770, 29724, 37155, 49540, 59448, 74310, 99080, 106511, 148620, 213022, 297240, 319533, 426044, 532555, 639066, 852088, 1065110, 1278132, 1597665, 2130220, 2556264, 3195330, 4260440, 6390660, 12781320]

約数ペア:

[(1, 12781320), (2, 6390660), (3, 4260440), (4, 3195330), (5, 2556264), (6, 2130220), (8, 1597665), (10, 1278132), (12, 1065110), (15, 852088), (20, 639066), (24, 532555), (30, 426044), (40, 319533), (43, 297240), (60, 213022), (86, 148620), (120, 106511), (129, 99080), (172, 74310), (215, 59448), (258, 49540), (344, 37155), (430, 29724), (516, 24770), (645, 19816), (860, 14862), (1032, 12385), (1290, 9908), (1720, 7431), (2477, 5160), (2580, 4954)]