409968385720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{249980723}}^1$

素因数の和:249980775

約数の個数: 32

約数和(自身を含む): 944927136720

約数和(自身を除く): 534958751000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 249980723, 499961446, 999922892, 1249903615, 1999845784, 2499807230, 4999614460, 9999228920, 10249209643, 20498419286, 40996838572, 51246048215, 81993677144, 102492096430, 204984192860, 409968385720]

約数ペア:

[(1, 409968385720), (2, 204984192860), (4, 102492096430), (5, 81993677144), (8, 51246048215), (10, 40996838572), (20, 20498419286), (40, 10249209643), (41, 9999228920), (82, 4999614460), (164, 2499807230), (205, 1999845784), (328, 1249903615), (410, 999922892), (820, 499961446), (1640, 249980723)]