30739240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{353}}^1$

素因数の和:682

約数の個数: 64

約数和(自身を含む): 79522560

約数和(自身を除く): 48783320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 311, 353, 622, 706, 1244, 1412, 1555, 1765, 2177, 2471, 2488, 2824, 3110, 3530, 4354, 4942, 6220, 7060, 8708, 9884, 10885, 12355, 12440, 14120, 17416, 19768, 21770, 24710, 43540, 49420, 87080, 98840, 109783, 219566, 439132, 548915, 768481, 878264, 1097830, 1536962, 2195660, 3073924, 3842405, 4391320, 6147848, 7684810, 15369620, 30739240]

約数ペア:

[(1, 30739240), (2, 15369620), (4, 7684810), (5, 6147848), (7, 4391320), (8, 3842405), (10, 3073924), (14, 2195660), (20, 1536962), (28, 1097830), (35, 878264), (40, 768481), (56, 548915), (70, 439132), (140, 219566), (280, 109783), (311, 98840), (353, 87080), (622, 49420), (706, 43540), (1244, 24710), (1412, 21770), (1555, 19768), (1765, 17416), (2177, 14120), (2471, 12440), (2488, 12355), (2824, 10885), (3110, 9884), (3530, 8708), (4354, 7060), (4942, 6220)]