278327715

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{12041}}^1$

素因数の和:12139

約数の個数: 32

約数和(自身を含む): 471661056

約数和(自身を除く): 193333341

約数列:

[1, 3, 5, 15, 23, 67, 69, 115, 201, 335, 345, 1005, 1541, 4623, 7705, 12041, 23115, 36123, 60205, 180615, 276943, 806747, 830829, 1384715, 2420241, 4033735, 4154145, 12101205, 18555181, 55665543, 92775905, 278327715]

約数ペア:

[(1, 278327715), (3, 92775905), (5, 55665543), (15, 18555181), (23, 12101205), (67, 4154145), (69, 4033735), (115, 2420241), (201, 1384715), (335, 830829), (345, 806747), (1005, 276943), (1541, 180615), (4623, 60205), (7705, 36123), (12041, 23115)]