388679990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1689913}}^1$

素因数の和:1689943

約数の個数: 16

約数和(自身を含む): 730042848

約数和(自身を除く): 341362858

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 1689913, 3379826, 8449565, 16899130, 38867999, 77735998, 194339995, 388679990]

約数ペア:

[(1, 388679990), (2, 194339995), (5, 77735998), (10, 38867999), (23, 16899130), (46, 8449565), (115, 3379826), (230, 1689913)]