257079508

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{487}}^1\times {\mathrm{1109}}^1$

素因数の和:1624

約数の個数: 48

約数和(自身を含む): 546013440

約数和(自身を除く): 288933932

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 487, 974, 1109, 1948, 2218, 3409, 4436, 6818, 7763, 8279, 13636, 15526, 16558, 18853, 31052, 33116, 37706, 57953, 75412, 115906, 131971, 231812, 263942, 527884, 540083, 1080166, 2160332, 3780581, 7561162, 9181411, 15122324, 18362822, 36725644, 64269877, 128539754, 257079508]

約数ペア:

[(1, 257079508), (2, 128539754), (4, 64269877), (7, 36725644), (14, 18362822), (17, 15122324), (28, 9181411), (34, 7561162), (68, 3780581), (119, 2160332), (238, 1080166), (476, 540083), (487, 527884), (974, 263942), (1109, 231812), (1948, 131971), (2218, 115906), (3409, 75412), (4436, 57953), (6818, 37706), (7763, 33116), (8279, 31052), (13636, 18853), (15526, 16558)]