80393840

素因数分解:

$2^4\times 5^1\times {\mathrm{263}}^1\times {\mathrm{3821}}^1$

素因数の和:4097

約数の個数: 40

約数和(自身を含む): 187675488

約数和(自身を除く): 107281648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 263, 526, 1052, 1315, 2104, 2630, 3821, 4208, 5260, 7642, 10520, 15284, 19105, 21040, 30568, 38210, 61136, 76420, 152840, 305680, 1004923, 2009846, 4019692, 5024615, 8039384, 10049230, 16078768, 20098460, 40196920, 80393840]

約数ペア:

[(1, 80393840), (2, 40196920), (4, 20098460), (5, 16078768), (8, 10049230), (10, 8039384), (16, 5024615), (20, 4019692), (40, 2009846), (80, 1004923), (263, 305680), (526, 152840), (1052, 76420), (1315, 61136), (2104, 38210), (2630, 30568), (3821, 21040), (4208, 19105), (5260, 15284), (7642, 10520)]