28679000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{241}}^1$

素因数の和:286

約数の個数: 128

約数和(自身を含む): 81544320

約数和(自身を除く): 52865320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 25, 28, 34, 35, 40, 50, 56, 68, 70, 85, 100, 119, 125, 136, 140, 170, 175, 200, 238, 241, 250, 280, 340, 350, 425, 476, 482, 500, 595, 680, 700, 850, 875, 952, 964, 1000, 1190, 1205, 1400, 1687, 1700, 1750, 1928, 2125, 2380, 2410, 2975, 3374, 3400, 3500, 4097, 4250, 4760, 4820, 5950, 6025, 6748, 7000, 8194, 8435, 8500, 9640, 11900, 12050, 13496, 14875, 16388, 16870, 17000, 20485, 23800, 24100, 28679, 29750, 30125, 32776, 33740, 40970, 42175, 48200, 57358, 59500, 60250, 67480, 81940, 84350, 102425, 114716, 119000, 120500, 143395, 163880, 168700, 204850, 210875, 229432, 241000, 286790, 337400, 409700, 421750, 512125, 573580, 716975, 819400, 843500, 1024250, 1147160, 1433950, 1687000, 2048500, 2867900, 3584875, 4097000, 5735800, 7169750, 14339500, 28679000]

約数ペア:

[(1, 28679000), (2, 14339500), (4, 7169750), (5, 5735800), (7, 4097000), (8, 3584875), (10, 2867900), (14, 2048500), (17, 1687000), (20, 1433950), (25, 1147160), (28, 1024250), (34, 843500), (35, 819400), (40, 716975), (50, 573580), (56, 512125), (68, 421750), (70, 409700), (85, 337400), (100, 286790), (119, 241000), (125, 229432), (136, 210875), (140, 204850), (170, 168700), (175, 163880), (200, 143395), (238, 120500), (241, 119000), (250, 114716), (280, 102425), (340, 84350), (350, 81940), (425, 67480), (476, 60250), (482, 59500), (500, 57358), (595, 48200), (680, 42175), (700, 40970), (850, 33740), (875, 32776), (952, 30125), (964, 29750), (1000, 28679), (1190, 24100), (1205, 23800), (1400, 20485), (1687, 17000), (1700, 16870), (1750, 16388), (1928, 14875), (2125, 13496), (2380, 12050), (2410, 11900), (2975, 9640), (3374, 8500), (3400, 8435), (3500, 8194), (4097, 7000), (4250, 6748), (4760, 6025), (4820, 5950)]