23397140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89989}}^1$

素因数の和:90011

約数の個数: 24

約数和(自身を含む): 52914120

約数和(自身を除く): 29516980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 89989, 179978, 359956, 449945, 899890, 1169857, 1799780, 2339714, 4679428, 5849285, 11698570, 23397140]

約数ペア:

[(1, 23397140), (2, 11698570), (4, 5849285), (5, 4679428), (10, 2339714), (13, 1799780), (20, 1169857), (26, 899890), (52, 449945), (65, 359956), (130, 179978), (260, 89989)]