253765720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{488011}}^1$

素因数の和:488035

約数の個数: 32

約数和(自身を含む): 614895120

約数和(自身を除く): 361129400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 488011, 976022, 1952044, 2440055, 3904088, 4880110, 6344143, 9760220, 12688286, 19520440, 25376572, 31720715, 50753144, 63441430, 126882860, 253765720]

約数ペア:

[(1, 253765720), (2, 126882860), (4, 63441430), (5, 50753144), (8, 31720715), (10, 25376572), (13, 19520440), (20, 12688286), (26, 9760220), (40, 6344143), (52, 4880110), (65, 3904088), (104, 2440055), (130, 1952044), (260, 976022), (520, 488011)]