177349720

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{21013}}^1$

素因数の和:21235

約数の個数: 32

約数和(自身を含む): 400947120

約数和(自身を除く): 223597400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 4220, 8440, 21013, 42026, 84052, 105065, 168104, 210130, 420260, 840520, 4433743, 8867486, 17734972, 22168715, 35469944, 44337430, 88674860, 177349720]

約数ペア:

[(1, 177349720), (2, 88674860), (4, 44337430), (5, 35469944), (8, 22168715), (10, 17734972), (20, 8867486), (40, 4433743), (211, 840520), (422, 420260), (844, 210130), (1055, 168104), (1688, 105065), (2110, 84052), (4220, 42026), (8440, 21013)]