81718000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{449}}^1$

素因数の和:492

約数の個数: 160

約数和(自身を含む): 243734400

約数和(自身を除く): 162016400

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 35, 40, 50, 52, 56, 65, 70, 80, 91, 100, 104, 112, 125, 130, 140, 175, 182, 200, 208, 250, 260, 280, 325, 350, 364, 400, 449, 455, 500, 520, 560, 650, 700, 728, 875, 898, 910, 1000, 1040, 1300, 1400, 1456, 1625, 1750, 1796, 1820, 2000, 2245, 2275, 2600, 2800, 3143, 3250, 3500, 3592, 3640, 4490, 4550, 5200, 5837, 6286, 6500, 7000, 7184, 7280, 8980, 9100, 11225, 11375, 11674, 12572, 13000, 14000, 15715, 17960, 18200, 22450, 22750, 23348, 25144, 26000, 29185, 31430, 35920, 36400, 40859, 44900, 45500, 46696, 50288, 56125, 58370, 62860, 78575, 81718, 89800, 91000, 93392, 112250, 116740, 125720, 145925, 157150, 163436, 179600, 182000, 204295, 224500, 233480, 251440, 291850, 314300, 326872, 392875, 408590, 449000, 466960, 583700, 628600, 653744, 729625, 785750, 817180, 898000, 1021475, 1167400, 1257200, 1459250, 1571500, 1634360, 2042950, 2334800, 2918500, 3143000, 3268720, 4085900, 5107375, 5837000, 6286000, 8171800, 10214750, 11674000, 16343600, 20429500, 40859000, 81718000]

約数ペア:

[(1, 81718000), (2, 40859000), (4, 20429500), (5, 16343600), (7, 11674000), (8, 10214750), (10, 8171800), (13, 6286000), (14, 5837000), (16, 5107375), (20, 4085900), (25, 3268720), (26, 3143000), (28, 2918500), (35, 2334800), (40, 2042950), (50, 1634360), (52, 1571500), (56, 1459250), (65, 1257200), (70, 1167400), (80, 1021475), (91, 898000), (100, 817180), (104, 785750), (112, 729625), (125, 653744), (130, 628600), (140, 583700), (175, 466960), (182, 449000), (200, 408590), (208, 392875), (250, 326872), (260, 314300), (280, 291850), (325, 251440), (350, 233480), (364, 224500), (400, 204295), (449, 182000), (455, 179600), (500, 163436), (520, 157150), (560, 145925), (650, 125720), (700, 116740), (728, 112250), (875, 93392), (898, 91000), (910, 89800), (1000, 81718), (1040, 78575), (1300, 62860), (1400, 58370), (1456, 56125), (1625, 50288), (1750, 46696), (1796, 45500), (1820, 44900), (2000, 40859), (2245, 36400), (2275, 35920), (2600, 31430), (2800, 29185), (3143, 26000), (3250, 25144), (3500, 23348), (3592, 22750), (3640, 22450), (4490, 18200), (4550, 17960), (5200, 15715), (5837, 14000), (6286, 13000), (6500, 12572), (7000, 11674), (7184, 11375), (7280, 11225), (8980, 9100)]