20613171504

素因数分解:

$2^4\times 3^1\times {\mathrm{23}}^1\times {\mathrm{431}}^1\times {\mathrm{43321}}^1$

素因数の和:43786

約数の個数: 80

約数和(自身を含む): 55696149504

約数和(自身を除く): 35082978000

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 46, 48, 69, 92, 138, 184, 276, 368, 431, 552, 862, 1104, 1293, 1724, 2586, 3448, 5172, 6896, 9913, 10344, 19826, 20688, 29739, 39652, 43321, 59478, 79304, 86642, 118956, 129963, 158608, 173284, 237912, 259926, 346568, 475824, 519852, 693136, 996383, 1039704, 1992766, 2079408, 2989149, 3985532, 5978298, 7971064, 11956596, 15942128, 18671351, 23913192, 37342702, 47826384, 56014053, 74685404, 112028106, 149370808, 224056212, 298741616, 429441073, 448112424, 858882146, 896224848, 1288323219, 1717764292, 2576646438, 3435528584, 5153292876, 6871057168, 10306585752, 20613171504]

約数ペア:

[(1, 20613171504), (2, 10306585752), (3, 6871057168), (4, 5153292876), (6, 3435528584), (8, 2576646438), (12, 1717764292), (16, 1288323219), (23, 896224848), (24, 858882146), (46, 448112424), (48, 429441073), (69, 298741616), (92, 224056212), (138, 149370808), (184, 112028106), (276, 74685404), (368, 56014053), (431, 47826384), (552, 37342702), (862, 23913192), (1104, 18671351), (1293, 15942128), (1724, 11956596), (2586, 7971064), (3448, 5978298), (5172, 3985532), (6896, 2989149), (9913, 2079408), (10344, 1992766), (19826, 1039704), (20688, 996383), (29739, 693136), (39652, 519852), (43321, 475824), (59478, 346568), (79304, 259926), (86642, 237912), (118956, 173284), (129963, 158608)]