2977780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{881}}^1$

素因数の和:916

約数の個数: 36

約数和(自身を含む): 6779052

約数和(自身を除く): 3801272

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 881, 1690, 1762, 3380, 3524, 4405, 8810, 11453, 17620, 22906, 45812, 57265, 114530, 148889, 229060, 297778, 595556, 744445, 1488890, 2977780]

約数ペア:

[(1, 2977780), (2, 1488890), (4, 744445), (5, 595556), (10, 297778), (13, 229060), (20, 148889), (26, 114530), (52, 57265), (65, 45812), (130, 22906), (169, 17620), (260, 11453), (338, 8810), (676, 4405), (845, 3524), (881, 3380), (1690, 1762)]