86890420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{2137}}^1$

素因数の和:2272

約数の個数: 48

約数和(自身を含む): 193959360

約数和(自身を除く): 107068940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 107, 190, 214, 380, 428, 535, 1070, 2033, 2137, 2140, 4066, 4274, 8132, 8548, 10165, 10685, 20330, 21370, 40603, 40660, 42740, 81206, 162412, 203015, 228659, 406030, 457318, 812060, 914636, 1143295, 2286590, 4344521, 4573180, 8689042, 17378084, 21722605, 43445210, 86890420]

約数ペア:

[(1, 86890420), (2, 43445210), (4, 21722605), (5, 17378084), (10, 8689042), (19, 4573180), (20, 4344521), (38, 2286590), (76, 1143295), (95, 914636), (107, 812060), (190, 457318), (214, 406030), (380, 228659), (428, 203015), (535, 162412), (1070, 81206), (2033, 42740), (2137, 40660), (2140, 40603), (4066, 21370), (4274, 20330), (8132, 10685), (8548, 10165)]