129885710

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{7681}}^1$

素因数の和:7796

約数の個数: 32

約数和(自身を含む): 248896800

約数和(自身を除く): 119011090

約数列:

[1, 2, 5, 10, 19, 38, 89, 95, 178, 190, 445, 890, 1691, 3382, 7681, 8455, 15362, 16910, 38405, 76810, 145939, 291878, 683609, 729695, 1367218, 1459390, 3418045, 6836090, 12988571, 25977142, 64942855, 129885710]

約数ペア:

[(1, 129885710), (2, 64942855), (5, 25977142), (10, 12988571), (19, 6836090), (38, 3418045), (89, 1459390), (95, 1367218), (178, 729695), (190, 683609), (445, 291878), (890, 145939), (1691, 76810), (3382, 38405), (7681, 16910), (8455, 15362)]