20081056

素因数分解:

$2^5\times {\mathrm{31}}^2\times {\mathrm{653}}^1$

素因数の和:725

約数の個数: 36

約数和(自身を含む): 40913586

約数和(自身を除く): 20832530

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 124, 248, 496, 653, 961, 992, 1306, 1922, 2612, 3844, 5224, 7688, 10448, 15376, 20243, 20896, 30752, 40486, 80972, 161944, 323888, 627533, 647776, 1255066, 2510132, 5020264, 10040528, 20081056]

約数ペア:

[(1, 20081056), (2, 10040528), (4, 5020264), (8, 2510132), (16, 1255066), (31, 647776), (32, 627533), (62, 323888), (124, 161944), (248, 80972), (496, 40486), (653, 30752), (961, 20896), (992, 20243), (1306, 15376), (1922, 10448), (2612, 7688), (3844, 5224)]