99998840

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{37313}}^1$

素因数の和:37391

約数の個数: 32

約数和(自身を含む): 228361680

約数和(自身を除く): 128362840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 37313, 74626, 149252, 186565, 298504, 373130, 746260, 1492520, 2499971, 4999942, 9999884, 12499855, 19999768, 24999710, 49999420, 99998840]

約数ペア:

[(1, 99998840), (2, 49999420), (4, 24999710), (5, 19999768), (8, 12499855), (10, 9999884), (20, 4999942), (40, 2499971), (67, 1492520), (134, 746260), (268, 373130), (335, 298504), (536, 186565), (670, 149252), (1340, 74626), (2680, 37313)]