127135280

素因数分解:

$2^4\times 5^1\times {\mathrm{397}}^1\times {\mathrm{4003}}^1$

素因数の和:4413

約数の個数: 40

約数和(自身を含む): 296408112

約数和(自身を除く): 169272832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397, 794, 1588, 1985, 3176, 3970, 4003, 6352, 7940, 8006, 15880, 16012, 20015, 31760, 32024, 40030, 64048, 80060, 160120, 320240, 1589191, 3178382, 6356764, 7945955, 12713528, 15891910, 25427056, 31783820, 63567640, 127135280]

約数ペア:

[(1, 127135280), (2, 63567640), (4, 31783820), (5, 25427056), (8, 15891910), (10, 12713528), (16, 7945955), (20, 6356764), (40, 3178382), (80, 1589191), (397, 320240), (794, 160120), (1588, 80060), (1985, 64048), (3176, 40030), (3970, 32024), (4003, 31760), (6352, 20015), (7940, 16012), (8006, 15880)]