408069004

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{20731}}^1$

素因数の和:20798

約数の個数: 48

約数和(自身を含む): 882353920

約数和(自身を除く): 474284916

約数列:

[1, 2, 4, 7, 14, 19, 28, 37, 38, 74, 76, 133, 148, 259, 266, 518, 532, 703, 1036, 1406, 2812, 4921, 9842, 19684, 20731, 41462, 82924, 145117, 290234, 393889, 580468, 767047, 787778, 1534094, 1575556, 2757223, 3068188, 5369329, 5514446, 10738658, 11028892, 14573893, 21477316, 29147786, 58295572, 102017251, 204034502, 408069004]

約数ペア:

[(1, 408069004), (2, 204034502), (4, 102017251), (7, 58295572), (14, 29147786), (19, 21477316), (28, 14573893), (37, 11028892), (38, 10738658), (74, 5514446), (76, 5369329), (133, 3068188), (148, 2757223), (259, 1575556), (266, 1534094), (518, 787778), (532, 767047), (703, 580468), (1036, 393889), (1406, 290234), (2812, 145117), (4921, 82924), (9842, 41462), (19684, 20731)]