90803320

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{31973}}^1$

素因数の和:32055

約数の個数: 32

約数和(自身を含む): 207191520

約数和(自身を除く): 116388200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 31973, 63946, 127892, 159865, 255784, 319730, 639460, 1278920, 2270083, 4540166, 9080332, 11350415, 18160664, 22700830, 45401660, 90803320]

約数ペア:

[(1, 90803320), (2, 45401660), (4, 22700830), (5, 18160664), (8, 11350415), (10, 9080332), (20, 4540166), (40, 2270083), (71, 1278920), (142, 639460), (284, 319730), (355, 255784), (568, 159865), (710, 127892), (1420, 63946), (2840, 31973)]