20825000

素因数分解:

$2^3\times 5^5\times 7^2\times {\mathrm{17}}^1$

素因数の和:62

約数の個数: 144

約数和(自身を含む): 60113340

約数和(自身を除く): 39288340

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 25, 28, 34, 35, 40, 49, 50, 56, 68, 70, 85, 98, 100, 119, 125, 136, 140, 170, 175, 196, 200, 238, 245, 250, 280, 340, 350, 392, 425, 476, 490, 500, 595, 625, 680, 700, 833, 850, 875, 952, 980, 1000, 1190, 1225, 1250, 1400, 1666, 1700, 1750, 1960, 2125, 2380, 2450, 2500, 2975, 3125, 3332, 3400, 3500, 4165, 4250, 4375, 4760, 4900, 5000, 5950, 6125, 6250, 6664, 7000, 8330, 8500, 8750, 9800, 10625, 11900, 12250, 12500, 14875, 16660, 17000, 17500, 20825, 21250, 21875, 23800, 24500, 25000, 29750, 30625, 33320, 35000, 41650, 42500, 43750, 49000, 53125, 59500, 61250, 74375, 83300, 85000, 87500, 104125, 106250, 119000, 122500, 148750, 153125, 166600, 175000, 208250, 212500, 245000, 297500, 306250, 371875, 416500, 425000, 520625, 595000, 612500, 743750, 833000, 1041250, 1225000, 1487500, 2082500, 2603125, 2975000, 4165000, 5206250, 10412500, 20825000]

約数ペア:

[(1, 20825000), (2, 10412500), (4, 5206250), (5, 4165000), (7, 2975000), (8, 2603125), (10, 2082500), (14, 1487500), (17, 1225000), (20, 1041250), (25, 833000), (28, 743750), (34, 612500), (35, 595000), (40, 520625), (49, 425000), (50, 416500), (56, 371875), (68, 306250), (70, 297500), (85, 245000), (98, 212500), (100, 208250), (119, 175000), (125, 166600), (136, 153125), (140, 148750), (170, 122500), (175, 119000), (196, 106250), (200, 104125), (238, 87500), (245, 85000), (250, 83300), (280, 74375), (340, 61250), (350, 59500), (392, 53125), (425, 49000), (476, 43750), (490, 42500), (500, 41650), (595, 35000), (625, 33320), (680, 30625), (700, 29750), (833, 25000), (850, 24500), (875, 23800), (952, 21875), (980, 21250), (1000, 20825), (1190, 17500), (1225, 17000), (1250, 16660), (1400, 14875), (1666, 12500), (1700, 12250), (1750, 11900), (1960, 10625), (2125, 9800), (2380, 8750), (2450, 8500), (2500, 8330), (2975, 7000), (3125, 6664), (3332, 6250), (3400, 6125), (3500, 5950), (4165, 5000), (4250, 4900), (4375, 4760)]