400815240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{379}}^1\times {\mathrm{1259}}^1$

素因数の和:1659

約数の個数: 128

約数和(自身を含む): 1378944000

約数和(自身を除く): 978128760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 379, 420, 758, 840, 1137, 1259, 1516, 1895, 2274, 2518, 2653, 3032, 3777, 3790, 4548, 5036, 5306, 5685, 6295, 7554, 7580, 7959, 8813, 9096, 10072, 10612, 11370, 12590, 13265, 15108, 15160, 15918, 17626, 18885, 21224, 22740, 25180, 26439, 26530, 30216, 31836, 35252, 37770, 39795, 44065, 45480, 50360, 52878, 53060, 63672, 70504, 75540, 79590, 88130, 105756, 106120, 132195, 151080, 159180, 176260, 211512, 264390, 318360, 352520, 477161, 528780, 954322, 1057560, 1431483, 1908644, 2385805, 2862966, 3340127, 3817288, 4771610, 5725932, 6680254, 7157415, 9543220, 10020381, 11451864, 13360508, 14314830, 16700635, 19086440, 20040762, 26721016, 28629660, 33401270, 40081524, 50101905, 57259320, 66802540, 80163048, 100203810, 133605080, 200407620, 400815240]

約数ペア:

[(1, 400815240), (2, 200407620), (3, 133605080), (4, 100203810), (5, 80163048), (6, 66802540), (7, 57259320), (8, 50101905), (10, 40081524), (12, 33401270), (14, 28629660), (15, 26721016), (20, 20040762), (21, 19086440), (24, 16700635), (28, 14314830), (30, 13360508), (35, 11451864), (40, 10020381), (42, 9543220), (56, 7157415), (60, 6680254), (70, 5725932), (84, 4771610), (105, 3817288), (120, 3340127), (140, 2862966), (168, 2385805), (210, 1908644), (280, 1431483), (379, 1057560), (420, 954322), (758, 528780), (840, 477161), (1137, 352520), (1259, 318360), (1516, 264390), (1895, 211512), (2274, 176260), (2518, 159180), (2653, 151080), (3032, 132195), (3777, 106120), (3790, 105756), (4548, 88130), (5036, 79590), (5306, 75540), (5685, 70504), (6295, 63672), (7554, 53060), (7580, 52878), (7959, 50360), (8813, 45480), (9096, 44065), (10072, 39795), (10612, 37770), (11370, 35252), (12590, 31836), (13265, 30216), (15108, 26530), (15160, 26439), (15918, 25180), (17626, 22740), (18885, 21224)]