20153178880

素因数分解:

$2^8\times 5^1\times {\mathrm{47}}^1\times {\mathrm{334993}}^1$

素因数の和:335061

約数の個数: 72

約数和(自身を含む): 49300396992

約数和(自身を除く): 29147218112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 64, 80, 94, 128, 160, 188, 235, 256, 320, 376, 470, 640, 752, 940, 1280, 1504, 1880, 3008, 3760, 6016, 7520, 12032, 15040, 30080, 60160, 334993, 669986, 1339972, 1674965, 2679944, 3349930, 5359888, 6699860, 10719776, 13399720, 15744671, 21439552, 26799440, 31489342, 42879104, 53598880, 62978684, 78723355, 85758208, 107197760, 125957368, 157446710, 214395520, 251914736, 314893420, 428791040, 503829472, 629786840, 1007658944, 1259573680, 2015317888, 2519147360, 4030635776, 5038294720, 10076589440, 20153178880]

約数ペア:

[(1, 20153178880), (2, 10076589440), (4, 5038294720), (5, 4030635776), (8, 2519147360), (10, 2015317888), (16, 1259573680), (20, 1007658944), (32, 629786840), (40, 503829472), (47, 428791040), (64, 314893420), (80, 251914736), (94, 214395520), (128, 157446710), (160, 125957368), (188, 107197760), (235, 85758208), (256, 78723355), (320, 62978684), (376, 53598880), (470, 42879104), (640, 31489342), (752, 26799440), (940, 21439552), (1280, 15744671), (1504, 13399720), (1880, 10719776), (3008, 6699860), (3760, 5359888), (6016, 3349930), (7520, 2679944), (12032, 1674965), (15040, 1339972), (30080, 669986), (60160, 334993)]