20178765035

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{521}}^1\times {\mathrm{2851}}^1$

素因数の和:3420

約数の個数: 64

約数和(自身を含む): 30013079040

約数和(自身を除く): 9834314005

約数列:

[1, 5, 11, 13, 19, 55, 65, 95, 143, 209, 247, 521, 715, 1045, 1235, 2605, 2717, 2851, 5731, 6773, 9899, 13585, 14255, 28655, 31361, 33865, 37063, 49495, 54169, 74503, 108889, 128687, 156805, 185315, 270845, 372515, 407693, 544445, 595859, 643435, 704197, 1415557, 1485371, 2038465, 2979295, 3520985, 7077785, 7426855, 7746167, 16339081, 19309823, 28222049, 38730835, 81695405, 96549115, 141110245, 212408053, 310442539, 366886637, 1062040265, 1552212695, 1834433185, 4035753007, 20178765035]

約数ペア:

[(1, 20178765035), (5, 4035753007), (11, 1834433185), (13, 1552212695), (19, 1062040265), (55, 366886637), (65, 310442539), (95, 212408053), (143, 141110245), (209, 96549115), (247, 81695405), (521, 38730835), (715, 28222049), (1045, 19309823), (1235, 16339081), (2605, 7746167), (2717, 7426855), (2851, 7077785), (5731, 3520985), (6773, 2979295), (9899, 2038465), (13585, 1485371), (14255, 1415557), (28655, 704197), (31361, 643435), (33865, 595859), (37063, 544445), (49495, 407693), (54169, 372515), (74503, 270845), (108889, 185315), (128687, 156805)]