1345240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{199}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 3294000

約数和(自身を除く): 1948760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 199, 260, 338, 398, 520, 676, 796, 845, 995, 1352, 1592, 1690, 1990, 2587, 3380, 3980, 5174, 6760, 7960, 10348, 12935, 20696, 25870, 33631, 51740, 67262, 103480, 134524, 168155, 269048, 336310, 672620, 1345240]

約数ペア:

[(1, 1345240), (2, 672620), (4, 336310), (5, 269048), (8, 168155), (10, 134524), (13, 103480), (20, 67262), (26, 51740), (40, 33631), (52, 25870), (65, 20696), (104, 12935), (130, 10348), (169, 7960), (199, 6760), (260, 5174), (338, 3980), (398, 3380), (520, 2587), (676, 1990), (796, 1690), (845, 1592), (995, 1352)]