204468520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{1511}}^1$

素因数の和:1738

約数の個数: 64

約数和(自身を含む): 489888000

約数和(自身を除く): 285419480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 199, 340, 398, 680, 796, 995, 1511, 1592, 1990, 3022, 3383, 3980, 6044, 6766, 7555, 7960, 12088, 13532, 15110, 16915, 25687, 27064, 30220, 33830, 51374, 60440, 67660, 102748, 128435, 135320, 205496, 256870, 300689, 513740, 601378, 1027480, 1202756, 1503445, 2405512, 3006890, 5111713, 6013780, 10223426, 12027560, 20446852, 25558565, 40893704, 51117130, 102234260, 204468520]

約数ペア:

[(1, 204468520), (2, 102234260), (4, 51117130), (5, 40893704), (8, 25558565), (10, 20446852), (17, 12027560), (20, 10223426), (34, 6013780), (40, 5111713), (68, 3006890), (85, 2405512), (136, 1503445), (170, 1202756), (199, 1027480), (340, 601378), (398, 513740), (680, 300689), (796, 256870), (995, 205496), (1511, 135320), (1592, 128435), (1990, 102748), (3022, 67660), (3383, 60440), (3980, 51374), (6044, 33830), (6766, 30220), (7555, 27064), (7960, 25687), (12088, 16915), (13532, 15110)]