20392970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1523}}^1$

素因数の和:1646

約数の個数: 32

約数和(自身を含む): 39940992

約数和(自身を除く): 19548022

約数列:

[1, 2, 5, 10, 13, 26, 65, 103, 130, 206, 515, 1030, 1339, 1523, 2678, 3046, 6695, 7615, 13390, 15230, 19799, 39598, 98995, 156869, 197990, 313738, 784345, 1568690, 2039297, 4078594, 10196485, 20392970]

約数ペア:

[(1, 20392970), (2, 10196485), (5, 4078594), (10, 2039297), (13, 1568690), (26, 784345), (65, 313738), (103, 197990), (130, 156869), (206, 98995), (515, 39598), (1030, 19799), (1339, 15230), (1523, 13390), (2678, 7615), (3046, 6695)]