249979390

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{401}}^1$

素因数の和:637

約数の個数: 64

約数和(自身を含む): 505362240

約数和(自身を除く): 255382850

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 85, 95, 170, 190, 193, 323, 386, 401, 646, 802, 965, 1615, 1930, 2005, 3230, 3281, 3667, 4010, 6562, 6817, 7334, 7619, 13634, 15238, 16405, 18335, 32810, 34085, 36670, 38095, 62339, 68170, 76190, 77393, 124678, 129523, 154786, 259046, 311695, 386965, 623390, 647615, 773930, 1295230, 1315681, 1470467, 2631362, 2940934, 6578405, 7352335, 13156810, 14704670, 24997939, 49995878, 124989695, 249979390]

約数ペア:

[(1, 249979390), (2, 124989695), (5, 49995878), (10, 24997939), (17, 14704670), (19, 13156810), (34, 7352335), (38, 6578405), (85, 2940934), (95, 2631362), (170, 1470467), (190, 1315681), (193, 1295230), (323, 773930), (386, 647615), (401, 623390), (646, 386965), (802, 311695), (965, 259046), (1615, 154786), (1930, 129523), (2005, 124678), (3230, 77393), (3281, 76190), (3667, 68170), (4010, 62339), (6562, 38095), (6817, 36670), (7334, 34085), (7619, 32810), (13634, 18335), (15238, 16405)]