220140440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{423347}}^1$

素因数の和:423371

約数の個数: 32

約数和(自身を含む): 533418480

約数和(自身を除く): 313278040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 423347, 846694, 1693388, 2116735, 3386776, 4233470, 5503511, 8466940, 11007022, 16933880, 22014044, 27517555, 44028088, 55035110, 110070220, 220140440]

約数ペア:

[(1, 220140440), (2, 110070220), (4, 55035110), (5, 44028088), (8, 27517555), (10, 22014044), (13, 16933880), (20, 11007022), (26, 8466940), (40, 5503511), (52, 4233470), (65, 3386776), (104, 2116735), (130, 1693388), (260, 846694), (520, 423347)]