261567300208

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{1721}}^1\times {\mathrm{155723}}^1$

素因数の和:157513

約数の個数: 40

約数和(自身を含む): 515397231216

約数和(自身を除く): 253829931008

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 1721, 3442, 6884, 13768, 27536, 104981, 155723, 209962, 311446, 419924, 622892, 839848, 1245784, 1679696, 2491568, 9499103, 18998206, 37996412, 75992824, 151985648, 267999283, 535998566, 1071997132, 2143994264, 4287988528, 16347956263, 32695912526, 65391825052, 130783650104, 261567300208]

約数ペア:

[(1, 261567300208), (2, 130783650104), (4, 65391825052), (8, 32695912526), (16, 16347956263), (61, 4287988528), (122, 2143994264), (244, 1071997132), (488, 535998566), (976, 267999283), (1721, 151985648), (3442, 75992824), (6884, 37996412), (13768, 18998206), (27536, 9499103), (104981, 2491568), (155723, 1679696), (209962, 1245784), (311446, 839848), (419924, 622892)]