395120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{449}}^1$

素因数の和:473

約数の個数: 40

約数和(自身を含む): 1004400

約数和(自身を除く): 609280

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 449, 880, 898, 1796, 2245, 3592, 4490, 4939, 7184, 8980, 9878, 17960, 19756, 24695, 35920, 39512, 49390, 79024, 98780, 197560, 395120]

約数ペア:

[(1, 395120), (2, 197560), (4, 98780), (5, 79024), (8, 49390), (10, 39512), (11, 35920), (16, 24695), (20, 19756), (22, 17960), (40, 9878), (44, 8980), (55, 7184), (80, 4939), (88, 4490), (110, 3592), (176, 2245), (220, 1796), (440, 898), (449, 880)]