1966120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:242

約数の個数: 64

約数和(自身を含む): 5040000

約数和(自身を除く): 3073880

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 199, 247, 260, 380, 398, 494, 520, 760, 796, 988, 995, 1235, 1592, 1976, 1990, 2470, 2587, 3781, 3980, 4940, 5174, 7562, 7960, 9880, 10348, 12935, 15124, 18905, 20696, 25870, 30248, 37810, 49153, 51740, 75620, 98306, 103480, 151240, 196612, 245765, 393224, 491530, 983060, 1966120]

約数ペア:

[(1, 1966120), (2, 983060), (4, 491530), (5, 393224), (8, 245765), (10, 196612), (13, 151240), (19, 103480), (20, 98306), (26, 75620), (38, 51740), (40, 49153), (52, 37810), (65, 30248), (76, 25870), (95, 20696), (104, 18905), (130, 15124), (152, 12935), (190, 10348), (199, 9880), (247, 7960), (260, 7562), (380, 5174), (398, 4940), (494, 3980), (520, 3781), (760, 2587), (796, 2470), (988, 1990), (995, 1976), (1235, 1592)]