207659855

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{401}}^1$

素因数の和:707

約数の個数: 32

約数和(自身を含む): 278788608

約数和(自身を除く): 71128753

約数列:

[1, 5, 13, 31, 65, 155, 257, 401, 403, 1285, 2005, 2015, 3341, 5213, 7967, 12431, 16705, 26065, 39835, 62155, 103057, 103571, 161603, 515285, 517855, 808015, 1339741, 3194767, 6698705, 15973835, 41531971, 207659855]

約数ペア:

[(1, 207659855), (5, 41531971), (13, 15973835), (31, 6698705), (65, 3194767), (155, 1339741), (257, 808015), (401, 517855), (403, 515285), (1285, 161603), (2005, 103571), (2015, 103057), (3341, 62155), (5213, 39835), (7967, 26065), (12431, 16705)]