18047960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1499}}^1$

素因数の和:1560

約数の個数: 64

約数和(自身を含む): 47520000

約数和(自身を除く): 29472040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1499, 1505, 1720, 2408, 2998, 3010, 5996, 6020, 7495, 10493, 11992, 12040, 14990, 20986, 29980, 41972, 52465, 59960, 64457, 83944, 104930, 128914, 209860, 257828, 322285, 419720, 451199, 515656, 644570, 902398, 1289140, 1804796, 2255995, 2578280, 3609592, 4511990, 9023980, 18047960]

約数ペア:

[(1, 18047960), (2, 9023980), (4, 4511990), (5, 3609592), (7, 2578280), (8, 2255995), (10, 1804796), (14, 1289140), (20, 902398), (28, 644570), (35, 515656), (40, 451199), (43, 419720), (56, 322285), (70, 257828), (86, 209860), (140, 128914), (172, 104930), (215, 83944), (280, 64457), (301, 59960), (344, 52465), (430, 41972), (602, 29980), (860, 20986), (1204, 14990), (1499, 12040), (1505, 11992), (1720, 10493), (2408, 7495), (2998, 6020), (3010, 5996)]