18810320

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{10223}}^1$

素因数の和:10259

約数の個数: 40

約数和(自身を含む): 45639936

約数和(自身を除く): 26829616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 10223, 20446, 40892, 51115, 81784, 102230, 163568, 204460, 235129, 408920, 470258, 817840, 940516, 1175645, 1881032, 2351290, 3762064, 4702580, 9405160, 18810320]

約数ペア:

[(1, 18810320), (2, 9405160), (4, 4702580), (5, 3762064), (8, 2351290), (10, 1881032), (16, 1175645), (20, 940516), (23, 817840), (40, 470258), (46, 408920), (80, 235129), (92, 204460), (115, 163568), (184, 102230), (230, 81784), (368, 51115), (460, 40892), (920, 20446), (1840, 10223)]