247906376

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{487}}^1$

素因数の和:726

約数の個数: 64

約数和(自身を含む): 521769600

約数和(自身を除く): 273863224

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 197, 323, 394, 487, 646, 788, 974, 1292, 1576, 1948, 2584, 3349, 3743, 3896, 6698, 7486, 8279, 9253, 13396, 14972, 16558, 18506, 26792, 29944, 33116, 37012, 63631, 66232, 74024, 95939, 127262, 157301, 191878, 254524, 314602, 383756, 509048, 629204, 767512, 1258408, 1630963, 1822841, 3261926, 3645682, 6523852, 7291364, 13047704, 14582728, 30988297, 61976594, 123953188, 247906376]

約数ペア:

[(1, 247906376), (2, 123953188), (4, 61976594), (8, 30988297), (17, 14582728), (19, 13047704), (34, 7291364), (38, 6523852), (68, 3645682), (76, 3261926), (136, 1822841), (152, 1630963), (197, 1258408), (323, 767512), (394, 629204), (487, 509048), (646, 383756), (788, 314602), (974, 254524), (1292, 191878), (1576, 157301), (1948, 127262), (2584, 95939), (3349, 74024), (3743, 66232), (3896, 63631), (6698, 37012), (7486, 33116), (8279, 29944), (9253, 26792), (13396, 18506), (14972, 16558)]