40728272

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{195809}}^1$

素因数の和:195830

約数の個数: 20

約数和(自身を含む): 84981540

約数和(自身を除く): 44253268

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 195809, 391618, 783236, 1566472, 2545517, 3132944, 5091034, 10182068, 20364136, 40728272]

約数ペア:

[(1, 40728272), (2, 20364136), (4, 10182068), (8, 5091034), (13, 3132944), (16, 2545517), (26, 1566472), (52, 783236), (104, 391618), (208, 195809)]