78179985

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{479}}^1$

素因数の和:540

約数の個数: 80

約数和(自身を含む): 156119040

約数和(自身を除く): 77939055

約数列:

[1, 3, 5, 9, 13, 15, 27, 31, 39, 45, 65, 81, 93, 117, 135, 155, 195, 279, 351, 403, 405, 465, 479, 585, 837, 1053, 1209, 1395, 1437, 1755, 2015, 2395, 2511, 3627, 4185, 4311, 5265, 6045, 6227, 7185, 10881, 12555, 12933, 14849, 18135, 18681, 21555, 31135, 32643, 38799, 44547, 54405, 56043, 64665, 74245, 93405, 133641, 163215, 168129, 193037, 193995, 222735, 280215, 400923, 504387, 579111, 668205, 840645, 965185, 1202769, 1737333, 2004615, 2521935, 2895555, 5211999, 6013845, 8686665, 15635997, 26059995, 78179985]

約数ペア:

[(1, 78179985), (3, 26059995), (5, 15635997), (9, 8686665), (13, 6013845), (15, 5211999), (27, 2895555), (31, 2521935), (39, 2004615), (45, 1737333), (65, 1202769), (81, 965185), (93, 840645), (117, 668205), (135, 579111), (155, 504387), (195, 400923), (279, 280215), (351, 222735), (403, 193995), (405, 193037), (465, 168129), (479, 163215), (585, 133641), (837, 93405), (1053, 74245), (1209, 64665), (1395, 56043), (1437, 54405), (1755, 44547), (2015, 38799), (2395, 32643), (2511, 31135), (3627, 21555), (4185, 18681), (4311, 18135), (5265, 14849), (6045, 12933), (6227, 12555), (7185, 10881)]