78792020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{1091}}^1$

素因数の和:1280

約数の個数: 48

約数和(自身を含む): 173916288

約数和(自身を除く): 95124268

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 157, 230, 314, 460, 628, 785, 1091, 1570, 2182, 3140, 3611, 4364, 5455, 7222, 10910, 14444, 18055, 21820, 25093, 36110, 50186, 72220, 100372, 125465, 171287, 250930, 342574, 501860, 685148, 856435, 1712870, 3425740, 3939601, 7879202, 15758404, 19698005, 39396010, 78792020]

約数ペア:

[(1, 78792020), (2, 39396010), (4, 19698005), (5, 15758404), (10, 7879202), (20, 3939601), (23, 3425740), (46, 1712870), (92, 856435), (115, 685148), (157, 501860), (230, 342574), (314, 250930), (460, 171287), (628, 125465), (785, 100372), (1091, 72220), (1570, 50186), (2182, 36110), (3140, 25093), (3611, 21820), (4364, 18055), (5455, 14444), (7222, 10910)]