261810536

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{41269}}^1$

素因数の和:41349

約数の個数: 32

約数和(自身を含む): 537335400

約数和(自身を除く): 275524864

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 244, 488, 793, 1586, 3172, 6344, 41269, 82538, 165076, 330152, 536497, 1072994, 2145988, 2517409, 4291976, 5034818, 10069636, 20139272, 32726317, 65452634, 130905268, 261810536]

約数ペア:

[(1, 261810536), (2, 130905268), (4, 65452634), (8, 32726317), (13, 20139272), (26, 10069636), (52, 5034818), (61, 4291976), (104, 2517409), (122, 2145988), (244, 1072994), (488, 536497), (793, 330152), (1586, 165076), (3172, 82538), (6344, 41269)]