161960656

素因数分解:

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

素因数の和:1100

約数の個数: 80

約数和(自身を含む): 374226048

約数和(自身を除く): 212265392

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 71, 88, 104, 142, 143, 176, 208, 284, 286, 568, 572, 781, 923, 997, 1136, 1144, 1562, 1846, 1994, 2288, 3124, 3692, 3988, 6248, 7384, 7976, 10153, 10967, 12496, 12961, 14768, 15952, 20306, 21934, 25922, 40612, 43868, 51844, 70787, 81224, 87736, 103688, 141574, 142571, 162448, 175472, 207376, 283148, 285142, 566296, 570284, 778657, 920231, 1132592, 1140568, 1557314, 1840462, 2281136, 3114628, 3680924, 6229256, 7361848, 10122541, 12458512, 14723696, 20245082, 40490164, 80980328, 161960656]

約数ペア:

[(1, 161960656), (2, 80980328), (4, 40490164), (8, 20245082), (11, 14723696), (13, 12458512), (16, 10122541), (22, 7361848), (26, 6229256), (44, 3680924), (52, 3114628), (71, 2281136), (88, 1840462), (104, 1557314), (142, 1140568), (143, 1132592), (176, 920231), (208, 778657), (284, 570284), (286, 566296), (568, 285142), (572, 283148), (781, 207376), (923, 175472), (997, 162448), (1136, 142571), (1144, 141574), (1562, 103688), (1846, 87736), (1994, 81224), (2288, 70787), (3124, 51844), (3692, 43868), (3988, 40612), (6248, 25922), (7384, 21934), (7976, 20306), (10153, 15952), (10967, 14768), (12496, 12961)]