661856

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:103

約数の個数: 48

約数和(自身を含む): 1474704

約数和(自身を除く): 812848

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 37, 43, 52, 74, 86, 104, 148, 172, 208, 296, 344, 416, 481, 559, 592, 688, 962, 1118, 1184, 1376, 1591, 1924, 2236, 3182, 3848, 4472, 6364, 7696, 8944, 12728, 15392, 17888, 20683, 25456, 41366, 50912, 82732, 165464, 330928, 661856]

約数ペア:

[(1, 661856), (2, 330928), (4, 165464), (8, 82732), (13, 50912), (16, 41366), (26, 25456), (32, 20683), (37, 17888), (43, 15392), (52, 12728), (74, 8944), (86, 7696), (104, 6364), (148, 4472), (172, 3848), (208, 3182), (296, 2236), (344, 1924), (416, 1591), (481, 1376), (559, 1184), (592, 1118), (688, 962)]