208068615

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{491}}^1$

素因数の和:621

約数の個数: 64

約数和(自身を含む): 384468480

約数和(自身を除く): 176399865

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 73, 129, 135, 215, 219, 365, 387, 491, 645, 657, 1095, 1161, 1473, 1935, 1971, 2455, 3139, 3285, 4419, 5805, 7365, 9417, 9855, 13257, 15695, 21113, 22095, 28251, 35843, 47085, 63339, 66285, 84753, 105565, 107529, 141255, 179215, 190017, 316695, 322587, 423765, 537645, 570051, 950085, 967761, 1541249, 1612935, 2850255, 4623747, 4838805, 7706245, 13871241, 23118735, 41613723, 69356205, 208068615]

約数ペア:

[(1, 208068615), (3, 69356205), (5, 41613723), (9, 23118735), (15, 13871241), (27, 7706245), (43, 4838805), (45, 4623747), (73, 2850255), (129, 1612935), (135, 1541249), (215, 967761), (219, 950085), (365, 570051), (387, 537645), (491, 423765), (645, 322587), (657, 316695), (1095, 190017), (1161, 179215), (1473, 141255), (1935, 107529), (1971, 105565), (2455, 84753), (3139, 66285), (3285, 63339), (4419, 47085), (5805, 35843), (7365, 28251), (9417, 22095), (9855, 21113), (13257, 15695)]