678661668

素因数分解:

$2^2\times 3^2\times {\mathrm{89}}^1\times {\mathrm{211817}}^1$

素因数の和:211916

約数の個数: 36

約数和(自身を含む): 1734789420

約数和(自身を除く): 1056127752

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 89, 178, 267, 356, 534, 801, 1068, 1602, 3204, 211817, 423634, 635451, 847268, 1270902, 1906353, 2541804, 3812706, 7625412, 18851713, 37703426, 56555139, 75406852, 113110278, 169665417, 226220556, 339330834, 678661668]

約数ペア:

[(1, 678661668), (2, 339330834), (3, 226220556), (4, 169665417), (6, 113110278), (9, 75406852), (12, 56555139), (18, 37703426), (36, 18851713), (89, 7625412), (178, 3812706), (267, 2541804), (356, 1906353), (534, 1270902), (801, 847268), (1068, 635451), (1602, 423634), (3204, 211817)]