15995000

素因数分解:

$2^3\times 5^4\times 7^1\times {\mathrm{457}}^1$

素因数の和:490

約数の個数: 80

約数和(自身を含む): 42923760

約数和(自身を除く): 26928760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 125, 140, 175, 200, 250, 280, 350, 457, 500, 625, 700, 875, 914, 1000, 1250, 1400, 1750, 1828, 2285, 2500, 3199, 3500, 3656, 4375, 4570, 5000, 6398, 7000, 8750, 9140, 11425, 12796, 15995, 17500, 18280, 22850, 25592, 31990, 35000, 45700, 57125, 63980, 79975, 91400, 114250, 127960, 159950, 228500, 285625, 319900, 399875, 457000, 571250, 639800, 799750, 1142500, 1599500, 1999375, 2285000, 3199000, 3998750, 7997500, 15995000]

約数ペア:

[(1, 15995000), (2, 7997500), (4, 3998750), (5, 3199000), (7, 2285000), (8, 1999375), (10, 1599500), (14, 1142500), (20, 799750), (25, 639800), (28, 571250), (35, 457000), (40, 399875), (50, 319900), (56, 285625), (70, 228500), (100, 159950), (125, 127960), (140, 114250), (175, 91400), (200, 79975), (250, 63980), (280, 57125), (350, 45700), (457, 35000), (500, 31990), (625, 25592), (700, 22850), (875, 18280), (914, 17500), (1000, 15995), (1250, 12796), (1400, 11425), (1750, 9140), (1828, 8750), (2285, 7000), (2500, 6398), (3199, 5000), (3500, 4570), (3656, 4375)]