80971390

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1\times {\mathrm{619}}^1$

素因数の和:856

約数の個数: 32

約数和(自身を含む): 148561920

約数和(自身を除く): 67590530

約数列:

[1, 2, 5, 10, 103, 127, 206, 254, 515, 619, 635, 1030, 1238, 1270, 3095, 6190, 13081, 26162, 63757, 65405, 78613, 127514, 130810, 157226, 318785, 393065, 637570, 786130, 8097139, 16194278, 40485695, 80971390]

約数ペア:

[(1, 80971390), (2, 40485695), (5, 16194278), (10, 8097139), (103, 786130), (127, 637570), (206, 393065), (254, 318785), (515, 157226), (619, 130810), (635, 127514), (1030, 78613), (1238, 65405), (1270, 63757), (3095, 26162), (6190, 13081)]