278595184

素因数分解:

$2^4\times 7^2\times {\mathrm{17}}^1\times {\mathrm{20903}}^1$

素因数の和:20942

約数の個数: 60

約数和(自身を含む): 664872624

約数和(自身を除く): 386277440

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 49, 56, 68, 98, 112, 119, 136, 196, 238, 272, 392, 476, 784, 833, 952, 1666, 1904, 3332, 6664, 13328, 20903, 41806, 83612, 146321, 167224, 292642, 334448, 355351, 585284, 710702, 1024247, 1170568, 1421404, 2048494, 2341136, 2487457, 2842808, 4096988, 4974914, 5685616, 8193976, 9949828, 16387952, 17412199, 19899656, 34824398, 39799312, 69648796, 139297592, 278595184]

約数ペア:

[(1, 278595184), (2, 139297592), (4, 69648796), (7, 39799312), (8, 34824398), (14, 19899656), (16, 17412199), (17, 16387952), (28, 9949828), (34, 8193976), (49, 5685616), (56, 4974914), (68, 4096988), (98, 2842808), (112, 2487457), (119, 2341136), (136, 2048494), (196, 1421404), (238, 1170568), (272, 1024247), (392, 710702), (476, 585284), (784, 355351), (833, 334448), (952, 292642), (1666, 167224), (1904, 146321), (3332, 83612), (6664, 41806), (13328, 20903)]