18880010

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:179

約数の個数: 48

約数和(自身を含む): 36789984

約数和(自身を除く): 17909974

約数列:

[1, 2, 5, 10, 23, 43, 46, 83, 86, 115, 166, 215, 230, 415, 430, 529, 830, 989, 1058, 1909, 1978, 2645, 3569, 3818, 4945, 5290, 7138, 9545, 9890, 17845, 19090, 22747, 35690, 43907, 45494, 82087, 87814, 113735, 164174, 219535, 227470, 410435, 439070, 820870, 1888001, 3776002, 9440005, 18880010]

約数ペア:

[(1, 18880010), (2, 9440005), (5, 3776002), (10, 1888001), (23, 820870), (43, 439070), (46, 410435), (83, 227470), (86, 219535), (115, 164174), (166, 113735), (215, 87814), (230, 82087), (415, 45494), (430, 43907), (529, 35690), (830, 22747), (989, 19090), (1058, 17845), (1909, 9890), (1978, 9545), (2645, 7138), (3569, 5290), (3818, 4945)]