80739920

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{27277}}^1$

素因数の和:27327

約数の個数: 40

約数和(自身を含む): 192800904

約数和(自身を除く): 112060984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 27277, 54554, 109108, 136385, 218216, 272770, 436432, 545540, 1009249, 1091080, 2018498, 2182160, 4036996, 5046245, 8073992, 10092490, 16147984, 20184980, 40369960, 80739920]

約数ペア:

[(1, 80739920), (2, 40369960), (4, 20184980), (5, 16147984), (8, 10092490), (10, 8073992), (16, 5046245), (20, 4036996), (37, 2182160), (40, 2018498), (74, 1091080), (80, 1009249), (148, 545540), (185, 436432), (296, 272770), (370, 218216), (592, 136385), (740, 109108), (1480, 54554), (2960, 27277)]