81069760

素因数分解:

$2^6\times 5^1\times {\mathrm{253343}}^1$

素因数の和:253360

約数の個数: 28

約数和(自身を含む): 193048128

約数和(自身を除く): 111978368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 253343, 506686, 1013372, 1266715, 2026744, 2533430, 4053488, 5066860, 8106976, 10133720, 16213952, 20267440, 40534880, 81069760]

約数ペア:

[(1, 81069760), (2, 40534880), (4, 20267440), (5, 16213952), (8, 10133720), (10, 8106976), (16, 5066860), (20, 4053488), (32, 2533430), (40, 2026744), (64, 1266715), (80, 1013372), (160, 506686), (320, 253343)]