51472720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1151}}^1$

素因数の和:1220

約数の個数: 80

約数和(自身を含む): 131991552

約数和(自身を除く): 80518832

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 80, 86, 104, 130, 172, 208, 215, 260, 344, 430, 520, 559, 688, 860, 1040, 1118, 1151, 1720, 2236, 2302, 2795, 3440, 4472, 4604, 5590, 5755, 8944, 9208, 11180, 11510, 14963, 18416, 22360, 23020, 29926, 44720, 46040, 49493, 59852, 74815, 92080, 98986, 119704, 149630, 197972, 239408, 247465, 299260, 395944, 494930, 598520, 643409, 791888, 989860, 1197040, 1286818, 1979720, 2573636, 3217045, 3959440, 5147272, 6434090, 10294544, 12868180, 25736360, 51472720]

約数ペア:

[(1, 51472720), (2, 25736360), (4, 12868180), (5, 10294544), (8, 6434090), (10, 5147272), (13, 3959440), (16, 3217045), (20, 2573636), (26, 1979720), (40, 1286818), (43, 1197040), (52, 989860), (65, 791888), (80, 643409), (86, 598520), (104, 494930), (130, 395944), (172, 299260), (208, 247465), (215, 239408), (260, 197972), (344, 149630), (430, 119704), (520, 98986), (559, 92080), (688, 74815), (860, 59852), (1040, 49493), (1118, 46040), (1151, 44720), (1720, 29926), (2236, 23020), (2302, 22360), (2795, 18416), (3440, 14963), (4472, 11510), (4604, 11180), (5590, 9208), (5755, 8944)]