128153620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{130769}}^1$

素因数の和:130792

約数の個数: 36

約数和(自身を含む): 313063380

約数和(自身を除く): 184909760

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 130769, 261538, 523076, 653845, 915383, 1307690, 1830766, 2615380, 3661532, 4576915, 6407681, 9153830, 12815362, 18307660, 25630724, 32038405, 64076810, 128153620]

約数ペア:

[(1, 128153620), (2, 64076810), (4, 32038405), (5, 25630724), (7, 18307660), (10, 12815362), (14, 9153830), (20, 6407681), (28, 4576915), (35, 3661532), (49, 2615380), (70, 1830766), (98, 1307690), (140, 915383), (196, 653845), (245, 523076), (490, 261538), (980, 130769)]