28854075

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:468

約数の個数: 48

約数和(自身を含む): 51068160

約数和(自身を除く): 22214085

約数列:

[1, 3, 5, 15, 23, 25, 43, 69, 75, 115, 129, 215, 345, 389, 575, 645, 989, 1075, 1167, 1725, 1945, 2967, 3225, 4945, 5835, 8947, 9725, 14835, 16727, 24725, 26841, 29175, 44735, 50181, 74175, 83635, 134205, 223675, 250905, 384721, 418175, 671025, 1154163, 1254525, 1923605, 5770815, 9618025, 28854075]

約数ペア:

[(1, 28854075), (3, 9618025), (5, 5770815), (15, 1923605), (23, 1254525), (25, 1154163), (43, 671025), (69, 418175), (75, 384721), (115, 250905), (129, 223675), (215, 134205), (345, 83635), (389, 74175), (575, 50181), (645, 44735), (989, 29175), (1075, 26841), (1167, 24725), (1725, 16727), (1945, 14835), (2967, 9725), (3225, 8947), (4945, 5835)]