81988670

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{3121}}^1$

素因数の和:3236

約数の個数: 32

約数和(自身を含む): 153752256

約数和(自身を除く): 71763586

約数列:

[1, 2, 5, 10, 37, 71, 74, 142, 185, 355, 370, 710, 2627, 3121, 5254, 6242, 13135, 15605, 26270, 31210, 115477, 221591, 230954, 443182, 577385, 1107955, 1154770, 2215910, 8198867, 16397734, 40994335, 81988670]

約数ペア:

[(1, 81988670), (2, 40994335), (5, 16397734), (10, 8198867), (37, 2215910), (71, 1154770), (74, 1107955), (142, 577385), (185, 443182), (355, 230954), (370, 221591), (710, 115477), (2627, 31210), (3121, 26270), (5254, 15605), (6242, 13135)]