20290697512

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{587}}^1\times {\mathrm{3203}}^1$

素因数の和:3886

約数の個数: 64

約数和(自身を含む): 40693363200

約数和(自身を除く): 20402665688

約数列:

[1, 2, 4, 8, 19, 38, 71, 76, 142, 152, 284, 568, 587, 1174, 1349, 2348, 2698, 3203, 4696, 5396, 6406, 10792, 11153, 12812, 22306, 25624, 41677, 44612, 60857, 83354, 89224, 121714, 166708, 227413, 243428, 333416, 454826, 486856, 791863, 909652, 1583726, 1819304, 1880161, 3167452, 3760322, 4320847, 6334904, 7520644, 8641694, 15041288, 17283388, 34566776, 35723059, 71446118, 133491431, 142892236, 266982862, 285784472, 533965724, 1067931448, 2536337189, 5072674378, 10145348756, 20290697512]

約数ペア:

[(1, 20290697512), (2, 10145348756), (4, 5072674378), (8, 2536337189), (19, 1067931448), (38, 533965724), (71, 285784472), (76, 266982862), (142, 142892236), (152, 133491431), (284, 71446118), (568, 35723059), (587, 34566776), (1174, 17283388), (1349, 15041288), (2348, 8641694), (2698, 7520644), (3203, 6334904), (4696, 4320847), (5396, 3760322), (6406, 3167452), (10792, 1880161), (11153, 1819304), (12812, 1583726), (22306, 909652), (25624, 791863), (41677, 486856), (44612, 454826), (60857, 333416), (83354, 243428), (89224, 227413), (121714, 166708)]