28127469220

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1009}}^1\times {\mathrm{15661}}^1$

素因数の和:16768

約数の個数: 48

約数和(自身を含む): 59794383600

約数和(自身を除く): 31666914380

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1009, 1780, 2018, 4036, 5045, 10090, 15661, 20180, 31322, 62644, 78305, 89801, 156610, 179602, 313220, 359204, 449005, 898010, 1393829, 1796020, 2787658, 5575316, 6969145, 13938290, 15801949, 27876580, 31603898, 63207796, 79009745, 158019490, 316038980, 1406373461, 2812746922, 5625493844, 7031867305, 14063734610, 28127469220]

約数ペア:

[(1, 28127469220), (2, 14063734610), (4, 7031867305), (5, 5625493844), (10, 2812746922), (20, 1406373461), (89, 316038980), (178, 158019490), (356, 79009745), (445, 63207796), (890, 31603898), (1009, 27876580), (1780, 15801949), (2018, 13938290), (4036, 6969145), (5045, 5575316), (10090, 2787658), (15661, 1796020), (20180, 1393829), (31322, 898010), (62644, 449005), (78305, 359204), (89801, 313220), (156610, 179602)]