1389905890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{50159}}^1$

素因数の和:50346

約数の個数: 32

約数和(自身を含む): 2665301760

約数和(自身を除く): 1275395870

約数列:

[1, 2, 5, 10, 17, 34, 85, 163, 170, 326, 815, 1630, 2771, 5542, 13855, 27710, 50159, 100318, 250795, 501590, 852703, 1705406, 4263515, 8175917, 8527030, 16351834, 40879585, 81759170, 138990589, 277981178, 694952945, 1389905890]

約数ペア:

[(1, 1389905890), (2, 694952945), (5, 277981178), (10, 138990589), (17, 81759170), (34, 40879585), (85, 16351834), (163, 8527030), (170, 8175917), (326, 4263515), (815, 1705406), (1630, 852703), (2771, 501590), (5542, 250795), (13855, 100318), (27710, 50159)]