30640400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1$

素因数の和:409

約数の個数: 120

約数和(自身を含む): 87089664

約数和(自身を除く): 56449264

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 35, 40, 50, 56, 62, 70, 80, 100, 112, 124, 140, 155, 175, 200, 217, 248, 280, 310, 350, 353, 400, 434, 496, 560, 620, 700, 706, 775, 868, 1085, 1240, 1400, 1412, 1550, 1736, 1765, 2170, 2471, 2480, 2800, 2824, 3100, 3472, 3530, 4340, 4942, 5425, 5648, 6200, 7060, 8680, 8825, 9884, 10850, 10943, 12355, 12400, 14120, 17360, 17650, 19768, 21700, 21886, 24710, 28240, 35300, 39536, 43400, 43772, 49420, 54715, 61775, 70600, 76601, 86800, 87544, 98840, 109430, 123550, 141200, 153202, 175088, 197680, 218860, 247100, 273575, 306404, 383005, 437720, 494200, 547150, 612808, 766010, 875440, 988400, 1094300, 1225616, 1532020, 1915025, 2188600, 3064040, 3830050, 4377200, 6128080, 7660100, 15320200, 30640400]

約数ペア:

[(1, 30640400), (2, 15320200), (4, 7660100), (5, 6128080), (7, 4377200), (8, 3830050), (10, 3064040), (14, 2188600), (16, 1915025), (20, 1532020), (25, 1225616), (28, 1094300), (31, 988400), (35, 875440), (40, 766010), (50, 612808), (56, 547150), (62, 494200), (70, 437720), (80, 383005), (100, 306404), (112, 273575), (124, 247100), (140, 218860), (155, 197680), (175, 175088), (200, 153202), (217, 141200), (248, 123550), (280, 109430), (310, 98840), (350, 87544), (353, 86800), (400, 76601), (434, 70600), (496, 61775), (560, 54715), (620, 49420), (700, 43772), (706, 43400), (775, 39536), (868, 35300), (1085, 28240), (1240, 24710), (1400, 21886), (1412, 21700), (1550, 19768), (1736, 17650), (1765, 17360), (2170, 14120), (2471, 12400), (2480, 12355), (2800, 10943), (2824, 10850), (3100, 9884), (3472, 8825), (3530, 8680), (4340, 7060), (4942, 6200), (5425, 5648)]