1389584

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{653}}^1$

素因数の和:687

約数の個数: 40

約数和(自身を含む): 3243840

約数和(自身を除く): 1854256

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 653, 1064, 1306, 2128, 2612, 4571, 5224, 9142, 10448, 12407, 18284, 24814, 36568, 49628, 73136, 86849, 99256, 173698, 198512, 347396, 694792, 1389584]

約数ペア:

[(1, 1389584), (2, 694792), (4, 347396), (7, 198512), (8, 173698), (14, 99256), (16, 86849), (19, 73136), (28, 49628), (38, 36568), (56, 24814), (76, 18284), (112, 12407), (133, 10448), (152, 9142), (266, 5224), (304, 4571), (532, 2612), (653, 2128), (1064, 1306)]