1781567216

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{997}}^1$

素因数の和:1111

約数の個数: 120

約数和(自身を含む): 4147672032

約数和(自身を除く): 2366104816

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 71, 88, 104, 121, 142, 143, 176, 208, 242, 284, 286, 484, 568, 572, 781, 923, 968, 997, 1136, 1144, 1562, 1573, 1846, 1936, 1994, 2288, 3124, 3146, 3692, 3988, 6248, 6292, 7384, 7976, 8591, 10153, 10967, 12496, 12584, 12961, 14768, 15952, 17182, 20306, 21934, 25168, 25922, 34364, 40612, 43868, 51844, 68728, 70787, 81224, 87736, 103688, 111683, 120637, 137456, 141574, 142571, 162448, 175472, 207376, 223366, 241274, 283148, 285142, 446732, 482548, 566296, 570284, 778657, 893464, 920231, 965096, 1132592, 1140568, 1557314, 1568281, 1786928, 1840462, 1930192, 2281136, 3114628, 3136562, 3680924, 6229256, 6273124, 7361848, 8565227, 10122541, 12458512, 12546248, 14723696, 17130454, 20245082, 25092496, 34260908, 40490164, 68521816, 80980328, 111347951, 137043632, 161960656, 222695902, 445391804, 890783608, 1781567216]

約数ペア:

[(1, 1781567216), (2, 890783608), (4, 445391804), (8, 222695902), (11, 161960656), (13, 137043632), (16, 111347951), (22, 80980328), (26, 68521816), (44, 40490164), (52, 34260908), (71, 25092496), (88, 20245082), (104, 17130454), (121, 14723696), (142, 12546248), (143, 12458512), (176, 10122541), (208, 8565227), (242, 7361848), (284, 6273124), (286, 6229256), (484, 3680924), (568, 3136562), (572, 3114628), (781, 2281136), (923, 1930192), (968, 1840462), (997, 1786928), (1136, 1568281), (1144, 1557314), (1562, 1140568), (1573, 1132592), (1846, 965096), (1936, 920231), (1994, 893464), (2288, 778657), (3124, 570284), (3146, 566296), (3692, 482548), (3988, 446732), (6248, 285142), (6292, 283148), (7384, 241274), (7976, 223366), (8591, 207376), (10153, 175472), (10967, 162448), (12496, 142571), (12584, 141574), (12961, 137456), (14768, 120637), (15952, 111683), (17182, 103688), (20306, 87736), (21934, 81224), (25168, 70787), (25922, 68728), (34364, 51844), (40612, 43868)]