20124939745

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{3049}}^1$

素因数の和:3218

約数の個数: 64

約数和(自身を含む): 27775008000

約数和(自身を除く): 7650068255

約数列:

[1, 5, 17, 19, 61, 67, 85, 95, 305, 323, 335, 1037, 1139, 1159, 1273, 1615, 3049, 4087, 5185, 5695, 5795, 6365, 15245, 19703, 20435, 21641, 51833, 57931, 69479, 77653, 98515, 108205, 185989, 204283, 259165, 289655, 347395, 388265, 929945, 984827, 1021415, 1320101, 3161813, 3472811, 3533791, 3881377, 4924135, 6600505, 12461263, 15809065, 17364055, 17668955, 19406885, 60074447, 62306315, 65983409, 211841471, 236763997, 300372235, 329917045, 1059207355, 1183819985, 4024987949, 20124939745]

約数ペア:

[(1, 20124939745), (5, 4024987949), (17, 1183819985), (19, 1059207355), (61, 329917045), (67, 300372235), (85, 236763997), (95, 211841471), (305, 65983409), (323, 62306315), (335, 60074447), (1037, 19406885), (1139, 17668955), (1159, 17364055), (1273, 15809065), (1615, 12461263), (3049, 6600505), (4087, 4924135), (5185, 3881377), (5695, 3533791), (5795, 3472811), (6365, 3161813), (15245, 1320101), (19703, 1021415), (20435, 984827), (21641, 929945), (51833, 388265), (57931, 347395), (69479, 289655), (77653, 259165), (98515, 204283), (108205, 185989)]