30644720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20161}}^1$

素因数の和:20193

約数の個数: 40

約数和(自身を含む): 75002640

約数和(自身を除く): 44357920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 20161, 40322, 80644, 100805, 161288, 201610, 322576, 383059, 403220, 766118, 806440, 1532236, 1612880, 1915295, 3064472, 3830590, 6128944, 7661180, 15322360, 30644720]

約数ペア:

[(1, 30644720), (2, 15322360), (4, 7661180), (5, 6128944), (8, 3830590), (10, 3064472), (16, 1915295), (19, 1612880), (20, 1532236), (38, 806440), (40, 766118), (76, 403220), (80, 383059), (95, 322576), (152, 201610), (190, 161288), (304, 100805), (380, 80644), (760, 40322), (1520, 20161)]