18075520

素因数分解:

$2^7\times 5^1\times {\mathrm{61}}^1\times {\mathrm{463}}^1$

素因数の和:543

約数の個数: 64

約数和(自身を含む): 44015040

約数和(自身を除く): 25939520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 305, 320, 463, 488, 610, 640, 926, 976, 1220, 1852, 1952, 2315, 2440, 3704, 3904, 4630, 4880, 7408, 7808, 9260, 9760, 14816, 18520, 19520, 28243, 29632, 37040, 39040, 56486, 59264, 74080, 112972, 141215, 148160, 225944, 282430, 296320, 451888, 564860, 903776, 1129720, 1807552, 2259440, 3615104, 4518880, 9037760, 18075520]

約数ペア:

[(1, 18075520), (2, 9037760), (4, 4518880), (5, 3615104), (8, 2259440), (10, 1807552), (16, 1129720), (20, 903776), (32, 564860), (40, 451888), (61, 296320), (64, 282430), (80, 225944), (122, 148160), (128, 141215), (160, 112972), (244, 74080), (305, 59264), (320, 56486), (463, 39040), (488, 37040), (610, 29632), (640, 28243), (926, 19520), (976, 18520), (1220, 14816), (1852, 9760), (1952, 9260), (2315, 7808), (2440, 7408), (3704, 4880), (3904, 4630)]