401660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 1021440

約数和(自身を除く): 619780

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 151, 190, 266, 302, 380, 532, 604, 665, 755, 1057, 1330, 1510, 2114, 2660, 2869, 3020, 4228, 5285, 5738, 10570, 11476, 14345, 20083, 21140, 28690, 40166, 57380, 80332, 100415, 200830, 401660]

約数ペア:

[(1, 401660), (2, 200830), (4, 100415), (5, 80332), (7, 57380), (10, 40166), (14, 28690), (19, 21140), (20, 20083), (28, 14345), (35, 11476), (38, 10570), (70, 5738), (76, 5285), (95, 4228), (133, 3020), (140, 2869), (151, 2660), (190, 2114), (266, 1510), (302, 1330), (380, 1057), (532, 755), (604, 665)]