81208890

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{128903}}^1$

素因数の和:128923

約数の個数: 48

約数和(自身を含む): 241308288

約数和(自身を除く): 160099398

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 128903, 257806, 386709, 644515, 773418, 902321, 1160127, 1289030, 1804642, 1933545, 2320254, 2706963, 3867090, 4511605, 5413926, 5800635, 8120889, 9023210, 11601270, 13534815, 16241778, 27069630, 40604445, 81208890]

約数ペア:

[(1, 81208890), (2, 40604445), (3, 27069630), (5, 16241778), (6, 13534815), (7, 11601270), (9, 9023210), (10, 8120889), (14, 5800635), (15, 5413926), (18, 4511605), (21, 3867090), (30, 2706963), (35, 2320254), (42, 1933545), (45, 1804642), (63, 1289030), (70, 1160127), (90, 902321), (105, 773418), (126, 644515), (210, 386709), (315, 257806), (630, 128903)]