19820380

素因数分解:

$2^2\times 5^1\times {\mathrm{619}}^1\times {\mathrm{1601}}^1$

素因数の和:2229

約数の個数: 24

約数和(自身を含む): 41716080

約数和(自身を除く): 21895700

約数列:

[1, 2, 4, 5, 10, 20, 619, 1238, 1601, 2476, 3095, 3202, 6190, 6404, 8005, 12380, 16010, 32020, 991019, 1982038, 3964076, 4955095, 9910190, 19820380]

約数ペア:

[(1, 19820380), (2, 9910190), (4, 4955095), (5, 3964076), (10, 1982038), (20, 991019), (619, 32020), (1238, 16010), (1601, 12380), (2476, 8005), (3095, 6404), (3202, 6190)]