2796820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{347}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 6547968

約数和(自身を除く): 3751148

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 347, 403, 620, 694, 806, 1388, 1612, 1735, 2015, 3470, 4030, 4511, 6940, 8060, 9022, 10757, 18044, 21514, 22555, 43028, 45110, 53785, 90220, 107570, 139841, 215140, 279682, 559364, 699205, 1398410, 2796820]

約数ペア:

[(1, 2796820), (2, 1398410), (4, 699205), (5, 559364), (10, 279682), (13, 215140), (20, 139841), (26, 107570), (31, 90220), (52, 53785), (62, 45110), (65, 43028), (124, 22555), (130, 21514), (155, 18044), (260, 10757), (310, 9022), (347, 8060), (403, 6940), (620, 4511), (694, 4030), (806, 3470), (1388, 2015), (1612, 1735)]