19549640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{283}}^1$

素因数の和:462

約数の個数: 64

約数和(自身を含む): 48461760

約数和(自身を除く): 28912120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 157, 220, 283, 314, 440, 566, 628, 785, 1132, 1256, 1415, 1570, 1727, 2264, 2830, 3113, 3140, 3454, 5660, 6226, 6280, 6908, 8635, 11320, 12452, 13816, 15565, 17270, 24904, 31130, 34540, 44431, 62260, 69080, 88862, 124520, 177724, 222155, 355448, 444310, 488741, 888620, 977482, 1777240, 1954964, 2443705, 3909928, 4887410, 9774820, 19549640]

約数ペア:

[(1, 19549640), (2, 9774820), (4, 4887410), (5, 3909928), (8, 2443705), (10, 1954964), (11, 1777240), (20, 977482), (22, 888620), (40, 488741), (44, 444310), (55, 355448), (88, 222155), (110, 177724), (157, 124520), (220, 88862), (283, 69080), (314, 62260), (440, 44431), (566, 34540), (628, 31130), (785, 24904), (1132, 17270), (1256, 15565), (1415, 13816), (1570, 12452), (1727, 11320), (2264, 8635), (2830, 6908), (3113, 6280), (3140, 6226), (3454, 5660)]