260815120

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{449}}^1$

素因数の和:652

約数の個数: 80

約数和(自身を含む): 623732400

約数和(自身を除く): 362917280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 137, 212, 265, 274, 424, 449, 530, 548, 685, 848, 898, 1060, 1096, 1370, 1796, 2120, 2192, 2245, 2740, 3592, 4240, 4490, 5480, 7184, 7261, 8980, 10960, 14522, 17960, 23797, 29044, 35920, 36305, 47594, 58088, 61513, 72610, 95188, 116176, 118985, 123026, 145220, 190376, 237970, 246052, 290440, 307565, 380752, 475940, 492104, 580880, 615130, 951880, 984208, 1230260, 1903760, 2460520, 3260189, 4921040, 6520378, 13040756, 16300945, 26081512, 32601890, 52163024, 65203780, 130407560, 260815120]

約数ペア:

[(1, 260815120), (2, 130407560), (4, 65203780), (5, 52163024), (8, 32601890), (10, 26081512), (16, 16300945), (20, 13040756), (40, 6520378), (53, 4921040), (80, 3260189), (106, 2460520), (137, 1903760), (212, 1230260), (265, 984208), (274, 951880), (424, 615130), (449, 580880), (530, 492104), (548, 475940), (685, 380752), (848, 307565), (898, 290440), (1060, 246052), (1096, 237970), (1370, 190376), (1796, 145220), (2120, 123026), (2192, 118985), (2245, 116176), (2740, 95188), (3592, 72610), (4240, 61513), (4490, 58088), (5480, 47594), (7184, 36305), (7261, 35920), (8980, 29044), (10960, 23797), (14522, 17960)]