81221744

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{83219}}^1$

素因数の和:83288

約数の個数: 20

約数和(自身を含む): 159948840

約数和(自身を除く): 78727096

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 83219, 166438, 332876, 665752, 1331504, 5076359, 10152718, 20305436, 40610872, 81221744]

約数ペア:

[(1, 81221744), (2, 40610872), (4, 20305436), (8, 10152718), (16, 5076359), (61, 1331504), (122, 665752), (244, 332876), (488, 166438), (976, 83219)]