56139915

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1$

素因数の和:340

約数の個数: 64

約数和(自身を含む): 102961152

約数和(自身を除く): 46821237

約数列:

[1, 3, 5, 13, 15, 31, 37, 39, 65, 93, 111, 155, 185, 195, 251, 403, 465, 481, 555, 753, 1147, 1209, 1255, 1443, 2015, 2405, 3263, 3441, 3765, 5735, 6045, 7215, 7781, 9287, 9789, 14911, 16315, 17205, 23343, 27861, 38905, 44733, 46435, 48945, 74555, 101153, 116715, 120731, 139305, 223665, 287897, 303459, 362193, 505765, 603655, 863691, 1439485, 1517295, 1810965, 3742661, 4318455, 11227983, 18713305, 56139915]

約数ペア:

[(1, 56139915), (3, 18713305), (5, 11227983), (13, 4318455), (15, 3742661), (31, 1810965), (37, 1517295), (39, 1439485), (65, 863691), (93, 603655), (111, 505765), (155, 362193), (185, 303459), (195, 287897), (251, 223665), (403, 139305), (465, 120731), (481, 116715), (555, 101153), (753, 74555), (1147, 48945), (1209, 46435), (1255, 44733), (1443, 38905), (2015, 27861), (2405, 23343), (3263, 17205), (3441, 16315), (3765, 14911), (5735, 9789), (6045, 9287), (7215, 7781)]