247975000

素因数分解:

$2^3\times 5^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1$

素因数の和:160

約数の個数: 192

約数和(自身を含む): 721828800

約数和(自身を除く): 473853800

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 25, 26, 28, 35, 40, 50, 52, 56, 65, 70, 91, 100, 104, 109, 125, 130, 140, 175, 182, 200, 218, 250, 260, 280, 325, 350, 364, 436, 455, 500, 520, 545, 625, 650, 700, 728, 763, 872, 875, 910, 1000, 1090, 1250, 1300, 1400, 1417, 1526, 1625, 1750, 1820, 2180, 2275, 2500, 2600, 2725, 2834, 3052, 3125, 3250, 3500, 3640, 3815, 4360, 4375, 4550, 5000, 5450, 5668, 6104, 6250, 6500, 7000, 7085, 7630, 8125, 8750, 9100, 9919, 10900, 11336, 11375, 12500, 13000, 13625, 14170, 15260, 16250, 17500, 18200, 19075, 19838, 21800, 21875, 22750, 25000, 27250, 28340, 30520, 32500, 35000, 35425, 38150, 39676, 40625, 43750, 45500, 49595, 54500, 56680, 56875, 65000, 68125, 70850, 76300, 79352, 81250, 87500, 91000, 95375, 99190, 109000, 113750, 136250, 141700, 152600, 162500, 175000, 177125, 190750, 198380, 227500, 247975, 272500, 283400, 284375, 325000, 340625, 354250, 381500, 396760, 455000, 476875, 495950, 545000, 568750, 681250, 708500, 763000, 885625, 953750, 991900, 1137500, 1239875, 1362500, 1417000, 1771250, 1907500, 1983800, 2275000, 2384375, 2479750, 2725000, 3542500, 3815000, 4428125, 4768750, 4959500, 6199375, 7085000, 8856250, 9537500, 9919000, 12398750, 17712500, 19075000, 24797500, 30996875, 35425000, 49595000, 61993750, 123987500, 247975000]

約数ペア:

[(1, 247975000), (2, 123987500), (4, 61993750), (5, 49595000), (7, 35425000), (8, 30996875), (10, 24797500), (13, 19075000), (14, 17712500), (20, 12398750), (25, 9919000), (26, 9537500), (28, 8856250), (35, 7085000), (40, 6199375), (50, 4959500), (52, 4768750), (56, 4428125), (65, 3815000), (70, 3542500), (91, 2725000), (100, 2479750), (104, 2384375), (109, 2275000), (125, 1983800), (130, 1907500), (140, 1771250), (175, 1417000), (182, 1362500), (200, 1239875), (218, 1137500), (250, 991900), (260, 953750), (280, 885625), (325, 763000), (350, 708500), (364, 681250), (436, 568750), (455, 545000), (500, 495950), (520, 476875), (545, 455000), (625, 396760), (650, 381500), (700, 354250), (728, 340625), (763, 325000), (872, 284375), (875, 283400), (910, 272500), (1000, 247975), (1090, 227500), (1250, 198380), (1300, 190750), (1400, 177125), (1417, 175000), (1526, 162500), (1625, 152600), (1750, 141700), (1820, 136250), (2180, 113750), (2275, 109000), (2500, 99190), (2600, 95375), (2725, 91000), (2834, 87500), (3052, 81250), (3125, 79352), (3250, 76300), (3500, 70850), (3640, 68125), (3815, 65000), (4360, 56875), (4375, 56680), (4550, 54500), (5000, 49595), (5450, 45500), (5668, 43750), (6104, 40625), (6250, 39676), (6500, 38150), (7000, 35425), (7085, 35000), (7630, 32500), (8125, 30520), (8750, 28340), (9100, 27250), (9919, 25000), (10900, 22750), (11336, 21875), (11375, 21800), (12500, 19838), (13000, 19075), (13625, 18200), (14170, 17500), (15260, 16250)]