78138879

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1319}}^1$

素因数の和:1380

約数の個数: 48

約数和(自身を含む): 134830080

約数和(自身を除く): 56691201

約数列:

[1, 3, 7, 13, 21, 31, 39, 49, 91, 93, 147, 217, 273, 403, 637, 651, 1209, 1319, 1519, 1911, 2821, 3957, 4557, 8463, 9233, 17147, 19747, 27699, 40889, 51441, 59241, 64631, 120029, 122667, 193893, 286223, 360087, 531557, 840203, 858669, 1594671, 2003561, 2520609, 3720899, 6010683, 11162697, 26046293, 78138879]

約数ペア:

[(1, 78138879), (3, 26046293), (7, 11162697), (13, 6010683), (21, 3720899), (31, 2520609), (39, 2003561), (49, 1594671), (91, 858669), (93, 840203), (147, 531557), (217, 360087), (273, 286223), (403, 193893), (637, 122667), (651, 120029), (1209, 64631), (1319, 59241), (1519, 51441), (1911, 40889), (2821, 27699), (3957, 19747), (4557, 17147), (8463, 9233)]