20123366960

素因数分解:

$2^4\times 5^1\times {\mathrm{311}}^1\times {\mathrm{401}}^1\times {\mathrm{2017}}^1$

素因数の和:2742

約数の個数: 80

約数和(自身を含む): 47077647552

約数和(自身を除く): 26954280592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 311, 401, 622, 802, 1244, 1555, 1604, 2005, 2017, 2488, 3110, 3208, 4010, 4034, 4976, 6220, 6416, 8020, 8068, 10085, 12440, 16040, 16136, 20170, 24880, 32080, 32272, 40340, 80680, 124711, 161360, 249422, 498844, 623555, 627287, 808817, 997688, 1247110, 1254574, 1617634, 1995376, 2494220, 2509148, 3136435, 3235268, 4044085, 4988440, 5018296, 6272870, 6470536, 8088170, 9976880, 10036592, 12545740, 12941072, 16176340, 25091480, 32352680, 50182960, 64705360, 251542087, 503084174, 1006168348, 1257710435, 2012336696, 2515420870, 4024673392, 5030841740, 10061683480, 20123366960]

約数ペア:

[(1, 20123366960), (2, 10061683480), (4, 5030841740), (5, 4024673392), (8, 2515420870), (10, 2012336696), (16, 1257710435), (20, 1006168348), (40, 503084174), (80, 251542087), (311, 64705360), (401, 50182960), (622, 32352680), (802, 25091480), (1244, 16176340), (1555, 12941072), (1604, 12545740), (2005, 10036592), (2017, 9976880), (2488, 8088170), (3110, 6470536), (3208, 6272870), (4010, 5018296), (4034, 4988440), (4976, 4044085), (6220, 3235268), (6416, 3136435), (8020, 2509148), (8068, 2494220), (10085, 1995376), (12440, 1617634), (16040, 1254574), (16136, 1247110), (20170, 997688), (24880, 808817), (32080, 627287), (32272, 623555), (40340, 498844), (80680, 249422), (124711, 161360)]