31131568

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1543}}^1$

素因数の和:1661

約数の個数: 40

約数和(自身を含む): 65669408

約数和(自身を除く): 34537840

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 97, 104, 194, 208, 388, 776, 1261, 1543, 1552, 2522, 3086, 5044, 6172, 10088, 12344, 20059, 20176, 24688, 40118, 80236, 149671, 160472, 299342, 320944, 598684, 1197368, 1945723, 2394736, 3891446, 7782892, 15565784, 31131568]

約数ペア:

[(1, 31131568), (2, 15565784), (4, 7782892), (8, 3891446), (13, 2394736), (16, 1945723), (26, 1197368), (52, 598684), (97, 320944), (104, 299342), (194, 160472), (208, 149671), (388, 80236), (776, 40118), (1261, 24688), (1543, 20176), (1552, 20059), (2522, 12344), (3086, 10088), (5044, 6172)]