7989405

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1$

素因数の和:158

約数の個数: 48

約数和(自身を含む): 14441280

約数和(自身を除く): 6451875

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 85, 95, 97, 255, 285, 289, 291, 323, 485, 867, 969, 1445, 1455, 1615, 1649, 1843, 4335, 4845, 4947, 5491, 5529, 8245, 9215, 16473, 24735, 27455, 27645, 28033, 31331, 82365, 84099, 93993, 140165, 156655, 420495, 469965, 532627, 1597881, 2663135, 7989405]

約数ペア:

[(1, 7989405), (3, 2663135), (5, 1597881), (15, 532627), (17, 469965), (19, 420495), (51, 156655), (57, 140165), (85, 93993), (95, 84099), (97, 82365), (255, 31331), (285, 28033), (289, 27645), (291, 27455), (323, 24735), (485, 16473), (867, 9215), (969, 8245), (1445, 5529), (1455, 5491), (1615, 4947), (1649, 4845), (1843, 4335)]