18780451755

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{911}}^1\times {\mathrm{1489}}^1$

素因数の和:2492

約数の個数: 64

約数和(自身を含む): 32874024960

約数和(自身を除く): 14093573205

約数列:

[1, 3, 5, 13, 15, 39, 65, 71, 195, 213, 355, 911, 923, 1065, 1489, 2733, 2769, 4467, 4555, 4615, 7445, 11843, 13665, 13845, 19357, 22335, 35529, 58071, 59215, 64681, 96785, 105719, 177645, 194043, 290355, 317157, 323405, 528595, 840853, 970215, 1356479, 1374347, 1585785, 2522559, 4069437, 4123041, 4204265, 6782395, 6871735, 12612795, 17634227, 20347185, 20615205, 52902681, 88171135, 96310009, 264513405, 288930027, 481550045, 1252030117, 1444650135, 3756090351, 6260150585, 18780451755]

約数ペア:

[(1, 18780451755), (3, 6260150585), (5, 3756090351), (13, 1444650135), (15, 1252030117), (39, 481550045), (65, 288930027), (71, 264513405), (195, 96310009), (213, 88171135), (355, 52902681), (911, 20615205), (923, 20347185), (1065, 17634227), (1489, 12612795), (2733, 6871735), (2769, 6782395), (4467, 4204265), (4555, 4123041), (4615, 4069437), (7445, 2522559), (11843, 1585785), (13665, 1374347), (13845, 1356479), (19357, 970215), (22335, 840853), (35529, 528595), (58071, 323405), (59215, 317157), (64681, 290355), (96785, 194043), (105719, 177645)]