20161970500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{1303}}^1\times {\mathrm{4421}}^1$

素因数の和:5750

約数の個数: 96

約数和(自身を含む): 50374291968

約数和(自身を除く): 30212321468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 125, 140, 175, 250, 350, 500, 700, 875, 1303, 1750, 2606, 3500, 4421, 5212, 6515, 8842, 9121, 13030, 17684, 18242, 22105, 26060, 30947, 32575, 36484, 44210, 45605, 61894, 65150, 88420, 91210, 110525, 123788, 130300, 154735, 162875, 182420, 221050, 228025, 309470, 325750, 442100, 456050, 552625, 618940, 651500, 773675, 912100, 1105250, 1140125, 1547350, 2210500, 2280250, 3094700, 3868375, 4560500, 5760563, 7736750, 11521126, 15473500, 23042252, 28802815, 40323941, 57605630, 80647882, 115211260, 144014075, 161295764, 201619705, 288028150, 403239410, 576056300, 720070375, 806478820, 1008098525, 1440140750, 2016197050, 2880281500, 4032394100, 5040492625, 10080985250, 20161970500]

約数ペア:

[(1, 20161970500), (2, 10080985250), (4, 5040492625), (5, 4032394100), (7, 2880281500), (10, 2016197050), (14, 1440140750), (20, 1008098525), (25, 806478820), (28, 720070375), (35, 576056300), (50, 403239410), (70, 288028150), (100, 201619705), (125, 161295764), (140, 144014075), (175, 115211260), (250, 80647882), (350, 57605630), (500, 40323941), (700, 28802815), (875, 23042252), (1303, 15473500), (1750, 11521126), (2606, 7736750), (3500, 5760563), (4421, 4560500), (5212, 3868375), (6515, 3094700), (8842, 2280250), (9121, 2210500), (13030, 1547350), (17684, 1140125), (18242, 1105250), (22105, 912100), (26060, 773675), (30947, 651500), (32575, 618940), (36484, 552625), (44210, 456050), (45605, 442100), (61894, 325750), (65150, 309470), (88420, 228025), (91210, 221050), (110525, 182420), (123788, 162875), (130300, 154735)]