28498540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{811}}^1$

素因数の和:1078

約数の個数: 48

約数和(自身を含む): 68753664

約数和(自身を除く): 40255124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 251, 502, 811, 1004, 1255, 1622, 1757, 2510, 3244, 3514, 4055, 5020, 5677, 7028, 8110, 8785, 11354, 16220, 17570, 22708, 28385, 35140, 56770, 113540, 203561, 407122, 814244, 1017805, 1424927, 2035610, 2849854, 4071220, 5699708, 7124635, 14249270, 28498540]

約数ペア:

[(1, 28498540), (2, 14249270), (4, 7124635), (5, 5699708), (7, 4071220), (10, 2849854), (14, 2035610), (20, 1424927), (28, 1017805), (35, 814244), (70, 407122), (140, 203561), (251, 113540), (502, 56770), (811, 35140), (1004, 28385), (1255, 22708), (1622, 17570), (1757, 16220), (2510, 11354), (3244, 8785), (3514, 8110), (4055, 7028), (5020, 5677)]