138741988

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{1321}}^1$

素因数の和:1385

約数の個数: 72

約数和(自身を含む): 315080192

約数和(自身を除く): 176338204

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 44, 62, 77, 121, 124, 154, 217, 242, 308, 341, 434, 484, 682, 847, 868, 1321, 1364, 1694, 2387, 2642, 3388, 3751, 4774, 5284, 7502, 9247, 9548, 14531, 15004, 18494, 26257, 29062, 36988, 40951, 52514, 58124, 81902, 101717, 105028, 159841, 163804, 203434, 286657, 319682, 406868, 450461, 573314, 639364, 900922, 1118887, 1146628, 1801844, 2237774, 3153227, 4475548, 4955071, 6306454, 9910142, 12612908, 19820284, 34685497, 69370994, 138741988]

約数ペア:

[(1, 138741988), (2, 69370994), (4, 34685497), (7, 19820284), (11, 12612908), (14, 9910142), (22, 6306454), (28, 4955071), (31, 4475548), (44, 3153227), (62, 2237774), (77, 1801844), (121, 1146628), (124, 1118887), (154, 900922), (217, 639364), (242, 573314), (308, 450461), (341, 406868), (434, 319682), (484, 286657), (682, 203434), (847, 163804), (868, 159841), (1321, 105028), (1364, 101717), (1694, 81902), (2387, 58124), (2642, 52514), (3388, 40951), (3751, 36988), (4774, 29062), (5284, 26257), (7502, 18494), (9247, 15004), (9548, 14531)]