81233276

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{70271}}^1$

素因数の和:70309

約数の個数: 18

約数和(自身を含む): 151014528

約数和(自身を除く): 69781252

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 70271, 140542, 281084, 1194607, 2389214, 4778428, 20308319, 40616638, 81233276]

約数ペア:

[(1, 81233276), (2, 40616638), (4, 20308319), (17, 4778428), (34, 2389214), (68, 1194607), (289, 281084), (578, 140542), (1156, 70271)]