80424820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{3659}}^1$

素因数の和:3832

約数の個数: 48

約数和(自身を含む): 194302080

約数和(自身を除く): 113877260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 785, 1099, 1570, 2198, 3140, 3659, 4396, 5495, 7318, 10990, 14636, 18295, 21980, 25613, 36590, 51226, 73180, 102452, 128065, 256130, 512260, 574463, 1148926, 2297852, 2872315, 4021241, 5744630, 8042482, 11489260, 16084964, 20106205, 40212410, 80424820]

約数ペア:

[(1, 80424820), (2, 40212410), (4, 20106205), (5, 16084964), (7, 11489260), (10, 8042482), (14, 5744630), (20, 4021241), (28, 2872315), (35, 2297852), (70, 1148926), (140, 574463), (157, 512260), (314, 256130), (628, 128065), (785, 102452), (1099, 73180), (1570, 51226), (2198, 36590), (3140, 25613), (3659, 21980), (4396, 18295), (5495, 14636), (7318, 10990)]