20921995510

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{103}}^1\times {\mathrm{120193}}^1$

素因数の和:120329

約数の個数: 48

約数和(自身を含む): 41175579744

約数和(自身を除く): 20253584234

約数列:

[1, 2, 5, 10, 13, 26, 65, 103, 130, 169, 206, 338, 515, 845, 1030, 1339, 1690, 2678, 6695, 13390, 17407, 34814, 87035, 120193, 174070, 240386, 600965, 1201930, 1562509, 3125018, 7812545, 12379879, 15625090, 20312617, 24759758, 40625234, 61899395, 101563085, 123798790, 160938427, 203126170, 321876854, 804692135, 1609384270, 2092199551, 4184399102, 10460997755, 20921995510]

約数ペア:

[(1, 20921995510), (2, 10460997755), (5, 4184399102), (10, 2092199551), (13, 1609384270), (26, 804692135), (65, 321876854), (103, 203126170), (130, 160938427), (169, 123798790), (206, 101563085), (338, 61899395), (515, 40625234), (845, 24759758), (1030, 20312617), (1339, 15625090), (1690, 12379879), (2678, 7812545), (6695, 3125018), (13390, 1562509), (17407, 1201930), (34814, 600965), (87035, 240386), (120193, 174070)]