1397472496

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{656707}}^1$

素因数の和:656741

約数の個数: 40

約数和(自身を含む): 3257271680

約数和(自身を除く): 1859799184

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 656707, 1313414, 2626828, 4596949, 5253656, 9193898, 10507312, 12477433, 18387796, 24954866, 36775592, 49909732, 73551184, 87342031, 99819464, 174684062, 199638928, 349368124, 698736248, 1397472496]

約数ペア:

[(1, 1397472496), (2, 698736248), (4, 349368124), (7, 199638928), (8, 174684062), (14, 99819464), (16, 87342031), (19, 73551184), (28, 49909732), (38, 36775592), (56, 24954866), (76, 18387796), (112, 12477433), (133, 10507312), (152, 9193898), (266, 5253656), (304, 4596949), (532, 2626828), (1064, 1313414), (2128, 656707)]