28857500

素因数分解:

$2^2\times 5^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1$

素因数の和:145

約数の個数: 120

約数和(自身を含む): 77150304

約数和(自身を除く): 48292804

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 25, 28, 34, 35, 50, 68, 70, 85, 97, 100, 119, 125, 140, 170, 175, 194, 238, 250, 340, 350, 388, 425, 476, 485, 500, 595, 625, 679, 700, 850, 875, 970, 1190, 1250, 1358, 1649, 1700, 1750, 1940, 2125, 2380, 2425, 2500, 2716, 2975, 3298, 3395, 3500, 4250, 4375, 4850, 5950, 6596, 6790, 8245, 8500, 8750, 9700, 10625, 11543, 11900, 12125, 13580, 14875, 16490, 16975, 17500, 21250, 23086, 24250, 29750, 32980, 33950, 41225, 42500, 46172, 48500, 57715, 59500, 60625, 67900, 74375, 82450, 84875, 115430, 121250, 148750, 164900, 169750, 206125, 230860, 242500, 288575, 297500, 339500, 412250, 424375, 577150, 824500, 848750, 1030625, 1154300, 1442875, 1697500, 2061250, 2885750, 4122500, 5771500, 7214375, 14428750, 28857500]

約数ペア:

[(1, 28857500), (2, 14428750), (4, 7214375), (5, 5771500), (7, 4122500), (10, 2885750), (14, 2061250), (17, 1697500), (20, 1442875), (25, 1154300), (28, 1030625), (34, 848750), (35, 824500), (50, 577150), (68, 424375), (70, 412250), (85, 339500), (97, 297500), (100, 288575), (119, 242500), (125, 230860), (140, 206125), (170, 169750), (175, 164900), (194, 148750), (238, 121250), (250, 115430), (340, 84875), (350, 82450), (388, 74375), (425, 67900), (476, 60625), (485, 59500), (500, 57715), (595, 48500), (625, 46172), (679, 42500), (700, 41225), (850, 33950), (875, 32980), (970, 29750), (1190, 24250), (1250, 23086), (1358, 21250), (1649, 17500), (1700, 16975), (1750, 16490), (1940, 14875), (2125, 13580), (2380, 12125), (2425, 11900), (2500, 11543), (2716, 10625), (2975, 9700), (3298, 8750), (3395, 8500), (3500, 8245), (4250, 6790), (4375, 6596), (4850, 5950)]