81566224

素因数分解:

$2^4\times {\mathrm{421}}^1\times {\mathrm{12109}}^1$

素因数の和:12538

約数の個数: 20

約数和(自身を含む): 158423020

約数和(自身を除く): 76856796

約数列:

[1, 2, 4, 8, 16, 421, 842, 1684, 3368, 6736, 12109, 24218, 48436, 96872, 193744, 5097889, 10195778, 20391556, 40783112, 81566224]

約数ペア:

[(1, 81566224), (2, 40783112), (4, 20391556), (8, 10195778), (16, 5097889), (421, 193744), (842, 96872), (1684, 48436), (3368, 24218), (6736, 12109)]