141979720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{86573}}^1$

素因数の和:86625

約数の個数: 32

約数和(自身を含む): 327249720

約数和(自身を除く): 185270000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 86573, 173146, 346292, 432865, 692584, 865730, 1731460, 3462920, 3549493, 7098986, 14197972, 17747465, 28395944, 35494930, 70989860, 141979720]

約数ペア:

[(1, 141979720), (2, 70989860), (4, 35494930), (5, 28395944), (8, 17747465), (10, 14197972), (20, 7098986), (40, 3549493), (41, 3462920), (82, 1731460), (164, 865730), (205, 692584), (328, 432865), (410, 346292), (820, 173146), (1640, 86573)]