81839308

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 155545600

約数和(自身を除く): 73706292

約数列:

[1, 2, 4, 19, 38, 61, 76, 122, 127, 139, 244, 254, 278, 508, 556, 1159, 2318, 2413, 2641, 4636, 4826, 5282, 7747, 8479, 9652, 10564, 15494, 16958, 17653, 30988, 33916, 35306, 70612, 147193, 161101, 294386, 322202, 335407, 588772, 644404, 670814, 1076833, 1341628, 2153666, 4307332, 20459827, 40919654, 81839308]

約数ペア:

[(1, 81839308), (2, 40919654), (4, 20459827), (19, 4307332), (38, 2153666), (61, 1341628), (76, 1076833), (122, 670814), (127, 644404), (139, 588772), (244, 335407), (254, 322202), (278, 294386), (508, 161101), (556, 147193), (1159, 70612), (2318, 35306), (2413, 33916), (2641, 30988), (4636, 17653), (4826, 16958), (5282, 15494), (7747, 10564), (8479, 9652)]