1231567220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{199}}^1\times {\mathrm{1831}}^1$

素因数の和:2065

約数の個数: 72

約数和(自身を含む): 2816150400

約数和(自身を除く): 1584583180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 199, 260, 338, 398, 676, 796, 845, 995, 1690, 1831, 1990, 2587, 3380, 3662, 3980, 5174, 7324, 9155, 10348, 12935, 18310, 23803, 25870, 33631, 36620, 47606, 51740, 67262, 95212, 119015, 134524, 168155, 238030, 309439, 336310, 364369, 476060, 618878, 672620, 728738, 1237756, 1457476, 1547195, 1821845, 3094390, 3643690, 4736797, 6188780, 7287380, 9473594, 18947188, 23683985, 47367970, 61578361, 94735940, 123156722, 246313444, 307891805, 615783610, 1231567220]

約数ペア:

[(1, 1231567220), (2, 615783610), (4, 307891805), (5, 246313444), (10, 123156722), (13, 94735940), (20, 61578361), (26, 47367970), (52, 23683985), (65, 18947188), (130, 9473594), (169, 7287380), (199, 6188780), (260, 4736797), (338, 3643690), (398, 3094390), (676, 1821845), (796, 1547195), (845, 1457476), (995, 1237756), (1690, 728738), (1831, 672620), (1990, 618878), (2587, 476060), (3380, 364369), (3662, 336310), (3980, 309439), (5174, 238030), (7324, 168155), (9155, 134524), (10348, 119015), (12935, 95212), (18310, 67262), (23803, 51740), (25870, 47606), (33631, 36620)]