451400

素因数分解:

$2^3\times 5^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:114

約数の個数: 48

約数和(自身を含む): 1095540

約数和(自身を除く): 644140

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 37, 40, 50, 61, 74, 100, 122, 148, 185, 200, 244, 296, 305, 370, 488, 610, 740, 925, 1220, 1480, 1525, 1850, 2257, 2440, 3050, 3700, 4514, 6100, 7400, 9028, 11285, 12200, 18056, 22570, 45140, 56425, 90280, 112850, 225700, 451400]

約数ペア:

[(1, 451400), (2, 225700), (4, 112850), (5, 90280), (8, 56425), (10, 45140), (20, 22570), (25, 18056), (37, 12200), (40, 11285), (50, 9028), (61, 7400), (74, 6100), (100, 4514), (122, 3700), (148, 3050), (185, 2440), (200, 2257), (244, 1850), (296, 1525), (305, 1480), (370, 1220), (488, 925), (610, 740)]