26460420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{251}}^2$

素因数の和:521

約数の個数: 72

約数和(自身を含む): 85012032

約数和(自身を除く): 58551612

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 251, 420, 502, 753, 1004, 1255, 1506, 1757, 2510, 3012, 3514, 3765, 5020, 5271, 7028, 7530, 8785, 10542, 15060, 17570, 21084, 26355, 35140, 52710, 63001, 105420, 126002, 189003, 252004, 315005, 378006, 441007, 630010, 756012, 882014, 945015, 1260020, 1323021, 1764028, 1890030, 2205035, 2646042, 3780060, 4410070, 5292084, 6615105, 8820140, 13230210, 26460420]

約数ペア:

[(1, 26460420), (2, 13230210), (3, 8820140), (4, 6615105), (5, 5292084), (6, 4410070), (7, 3780060), (10, 2646042), (12, 2205035), (14, 1890030), (15, 1764028), (20, 1323021), (21, 1260020), (28, 945015), (30, 882014), (35, 756012), (42, 630010), (60, 441007), (70, 378006), (84, 315005), (105, 252004), (140, 189003), (210, 126002), (251, 105420), (420, 63001), (502, 52710), (753, 35140), (1004, 26355), (1255, 21084), (1506, 17570), (1757, 15060), (2510, 10542), (3012, 8785), (3514, 7530), (3765, 7028), (5020, 5271)]