64831780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19181}}^1$

素因数の和:19216

約数の個数: 36

約数和(自身を含む): 147432852

約数和(自身を除く): 82601072

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 19181, 38362, 76724, 95905, 191810, 249353, 383620, 498706, 997412, 1246765, 2493530, 3241589, 4987060, 6483178, 12966356, 16207945, 32415890, 64831780]

約数ペア:

[(1, 64831780), (2, 32415890), (4, 16207945), (5, 12966356), (10, 6483178), (13, 4987060), (20, 3241589), (26, 2493530), (52, 1246765), (65, 997412), (130, 498706), (169, 383620), (260, 249353), (338, 191810), (676, 95905), (845, 76724), (1690, 38362), (3380, 19181)]