84885620

素因数分解:

$2^2\times 5^1\times {\mathrm{661}}^1\times {\mathrm{6421}}^1$

素因数の和:7091

約数の個数: 24

約数和(自身を含む): 178557288

約数和(自身を除く): 93671668

約数列:

[1, 2, 4, 5, 10, 20, 661, 1322, 2644, 3305, 6421, 6610, 12842, 13220, 25684, 32105, 64210, 128420, 4244281, 8488562, 16977124, 21221405, 42442810, 84885620]

約数ペア:

[(1, 84885620), (2, 42442810), (4, 21221405), (5, 16977124), (10, 8488562), (20, 4244281), (661, 128420), (1322, 64210), (2644, 32105), (3305, 25684), (6421, 13220), (6610, 12842)]