1972509890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{4013}}^1$

素因数の和:4251

約数の個数: 64

約数和(自身を含む): 4046112000

約数和(自身を除く): 2073602110

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 199, 247, 398, 494, 995, 1235, 1990, 2470, 2587, 3781, 4013, 5174, 7562, 8026, 12935, 18905, 20065, 25870, 37810, 40130, 49153, 52169, 76247, 98306, 104338, 152494, 245765, 260845, 381235, 491530, 521690, 762470, 798587, 991211, 1597174, 1982422, 3992935, 4956055, 7985870, 9912110, 10381631, 15173153, 20763262, 30346306, 51908155, 75865765, 103816310, 151731530, 197250989, 394501978, 986254945, 1972509890]

約数ペア:

[(1, 1972509890), (2, 986254945), (5, 394501978), (10, 197250989), (13, 151731530), (19, 103816310), (26, 75865765), (38, 51908155), (65, 30346306), (95, 20763262), (130, 15173153), (190, 10381631), (199, 9912110), (247, 7985870), (398, 4956055), (494, 3992935), (995, 1982422), (1235, 1597174), (1990, 991211), (2470, 798587), (2587, 762470), (3781, 521690), (4013, 491530), (5174, 381235), (7562, 260845), (8026, 245765), (12935, 152494), (18905, 104338), (20065, 98306), (25870, 76247), (37810, 52169), (40130, 49153)]