90815319

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 154552320

約数和(自身を除く): 63737001

約数列:

[1, 3, 7, 9, 21, 63, 71, 79, 213, 237, 257, 497, 553, 639, 711, 771, 1491, 1659, 1799, 2313, 4473, 4977, 5397, 5609, 16191, 16827, 18247, 20303, 39263, 50481, 54741, 60909, 117789, 127729, 142121, 164223, 182727, 353367, 383187, 426363, 1149561, 1279089, 1441513, 4324539, 10090591, 12973617, 30271773, 90815319]

約数ペア:

[(1, 90815319), (3, 30271773), (7, 12973617), (9, 10090591), (21, 4324539), (63, 1441513), (71, 1279089), (79, 1149561), (213, 426363), (237, 383187), (257, 353367), (497, 182727), (553, 164223), (639, 142121), (711, 127729), (771, 117789), (1491, 60909), (1659, 54741), (1799, 50481), (2313, 39263), (4473, 20303), (4977, 18247), (5397, 16827), (5609, 16191)]