2570985

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:158

約数の個数: 48

約数和(自身を含む): 4892160

約数和(自身を除く): 2321175

約数列:

[1, 3, 5, 9, 15, 19, 31, 45, 57, 93, 95, 97, 155, 171, 279, 285, 291, 465, 485, 589, 855, 873, 1395, 1455, 1767, 1843, 2945, 3007, 4365, 5301, 5529, 8835, 9021, 9215, 15035, 16587, 26505, 27063, 27645, 45105, 57133, 82935, 135315, 171399, 285665, 514197, 856995, 2570985]

約数ペア:

[(1, 2570985), (3, 856995), (5, 514197), (9, 285665), (15, 171399), (19, 135315), (31, 82935), (45, 57133), (57, 45105), (93, 27645), (95, 27063), (97, 26505), (155, 16587), (171, 15035), (279, 9215), (285, 9021), (291, 8835), (465, 5529), (485, 5301), (589, 4365), (855, 3007), (873, 2945), (1395, 1843), (1455, 1767)]