201231320

素因数分解:

$2^3\times 5^1\times {\mathrm{1103}}^1\times {\mathrm{4561}}^1$

素因数の和:5675

約数の個数: 32

約数和(自身を含む): 453280320

約数和(自身を除く): 252049000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1103, 2206, 4412, 4561, 5515, 8824, 9122, 11030, 18244, 22060, 22805, 36488, 44120, 45610, 91220, 182440, 5030783, 10061566, 20123132, 25153915, 40246264, 50307830, 100615660, 201231320]

約数ペア:

[(1, 201231320), (2, 100615660), (4, 50307830), (5, 40246264), (8, 25153915), (10, 20123132), (20, 10061566), (40, 5030783), (1103, 182440), (2206, 91220), (4412, 45610), (4561, 44120), (5515, 36488), (8824, 22805), (9122, 22060), (11030, 18244)]