1238498000

素因数分解:

$2^4\times 5^3\times {\mathrm{239}}^1\times {\mathrm{2591}}^1$

素因数の和:2853

約数の個数: 80

約数和(自身を含む): 3008378880

約数和(自身を除く): 1769880880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 239, 250, 400, 478, 500, 956, 1000, 1195, 1912, 2000, 2390, 2591, 3824, 4780, 5182, 5975, 9560, 10364, 11950, 12955, 19120, 20728, 23900, 25910, 29875, 41456, 47800, 51820, 59750, 64775, 95600, 103640, 119500, 129550, 207280, 239000, 259100, 323875, 478000, 518200, 619249, 647750, 1036400, 1238498, 1295500, 2476996, 2591000, 3096245, 4953992, 5182000, 6192490, 9907984, 12384980, 15481225, 24769960, 30962450, 49539920, 61924900, 77406125, 123849800, 154812250, 247699600, 309624500, 619249000, 1238498000]

約数ペア:

[(1, 1238498000), (2, 619249000), (4, 309624500), (5, 247699600), (8, 154812250), (10, 123849800), (16, 77406125), (20, 61924900), (25, 49539920), (40, 30962450), (50, 24769960), (80, 15481225), (100, 12384980), (125, 9907984), (200, 6192490), (239, 5182000), (250, 4953992), (400, 3096245), (478, 2591000), (500, 2476996), (956, 1295500), (1000, 1238498), (1195, 1036400), (1912, 647750), (2000, 619249), (2390, 518200), (2591, 478000), (3824, 323875), (4780, 259100), (5182, 239000), (5975, 207280), (9560, 129550), (10364, 119500), (11950, 103640), (12955, 95600), (19120, 64775), (20728, 59750), (23900, 51820), (25910, 47800), (29875, 41456)]