19954497805

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{229}}^1\times {\mathrm{1973}}^1$

素因数の和:2302

約数の個数: 48

約数和(自身を含む): 26810789040

約数和(自身を除く): 6856291235

約数列:

[1, 5, 11, 55, 73, 121, 229, 365, 605, 803, 1145, 1973, 2519, 4015, 8833, 9865, 12595, 16717, 21703, 27709, 44165, 83585, 108515, 138545, 144029, 183887, 238733, 451817, 720145, 919435, 1193665, 1584319, 2022757, 2259085, 4969987, 7921595, 10113785, 17427509, 24849935, 32982641, 54669857, 87137545, 164913205, 273349285, 362809051, 1814045255, 3990899561, 19954497805]

約数ペア:

[(1, 19954497805), (5, 3990899561), (11, 1814045255), (55, 362809051), (73, 273349285), (121, 164913205), (229, 87137545), (365, 54669857), (605, 32982641), (803, 24849935), (1145, 17427509), (1973, 10113785), (2519, 7921595), (4015, 4969987), (8833, 2259085), (9865, 2022757), (12595, 1584319), (16717, 1193665), (21703, 919435), (27709, 720145), (44165, 451817), (83585, 238733), (108515, 183887), (138545, 144029)]