19903410

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:232

約数の個数: 96

約数和(自身を含む): 54774720

約数和(自身を除く): 34871310

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 37, 43, 45, 74, 86, 90, 111, 129, 139, 185, 215, 222, 258, 278, 333, 370, 387, 417, 430, 555, 645, 666, 695, 774, 834, 1110, 1251, 1290, 1390, 1591, 1665, 1935, 2085, 2502, 3182, 3330, 3870, 4170, 4773, 5143, 5977, 6255, 7955, 9546, 10286, 11954, 12510, 14319, 15429, 15910, 17931, 23865, 25715, 28638, 29885, 30858, 35862, 46287, 47730, 51430, 53793, 59770, 71595, 77145, 89655, 92574, 107586, 143190, 154290, 179310, 221149, 231435, 268965, 442298, 462870, 537930, 663447, 1105745, 1326894, 1990341, 2211490, 3317235, 3980682, 6634470, 9951705, 19903410]

約数ペア:

[(1, 19903410), (2, 9951705), (3, 6634470), (5, 3980682), (6, 3317235), (9, 2211490), (10, 1990341), (15, 1326894), (18, 1105745), (30, 663447), (37, 537930), (43, 462870), (45, 442298), (74, 268965), (86, 231435), (90, 221149), (111, 179310), (129, 154290), (139, 143190), (185, 107586), (215, 92574), (222, 89655), (258, 77145), (278, 71595), (333, 59770), (370, 53793), (387, 51430), (417, 47730), (430, 46287), (555, 35862), (645, 30858), (666, 29885), (695, 28638), (774, 25715), (834, 23865), (1110, 17931), (1251, 15910), (1290, 15429), (1390, 14319), (1591, 12510), (1665, 11954), (1935, 10286), (2085, 9546), (2502, 7955), (3182, 6255), (3330, 5977), (3870, 5143), (4170, 4773)]