28557690

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{19427}}^1$

素因数の和:19451

約数の個数: 48

約数和(自身を含む): 79732512

約数和(自身を除く): 51174822

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 19427, 38854, 58281, 97135, 116562, 135989, 194270, 271978, 291405, 407967, 582810, 679945, 815934, 951923, 1359890, 1903846, 2039835, 2855769, 4079670, 4759615, 5711538, 9519230, 14278845, 28557690]

約数ペア:

[(1, 28557690), (2, 14278845), (3, 9519230), (5, 5711538), (6, 4759615), (7, 4079670), (10, 2855769), (14, 2039835), (15, 1903846), (21, 1359890), (30, 951923), (35, 815934), (42, 679945), (49, 582810), (70, 407967), (98, 291405), (105, 271978), (147, 194270), (210, 135989), (245, 116562), (294, 97135), (490, 58281), (735, 38854), (1470, 19427)]