20278315706

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{263}}^1\times {\mathrm{409}}^1$

素因数の和:756

約数の個数: 96

約数和(自身を含む): 36277718400

約数和(自身を除く): 15999402694

約数列:

[1, 2, 11, 19, 22, 38, 41, 82, 121, 209, 242, 263, 409, 418, 451, 526, 779, 818, 902, 1558, 2299, 2893, 4499, 4598, 4961, 4997, 5786, 7771, 8569, 8998, 9922, 9994, 10783, 15542, 16769, 17138, 21566, 31823, 33538, 49489, 54967, 63646, 85481, 94259, 98978, 107567, 109934, 118613, 170962, 184459, 188518, 204877, 215134, 237226, 318611, 368918, 409754, 604637, 637222, 940291, 1183237, 1209274, 1304743, 1880582, 2029049, 2043773, 2253647, 2366474, 2609486, 3504721, 4058098, 4087546, 4410247, 4507294, 7009442, 8820494, 13015607, 22481503, 24790117, 26031214, 38551931, 44963006, 48512717, 49580234, 77103862, 83794693, 97025434, 167589386, 247296533, 494593066, 533639887, 921741623, 1067279774, 1843483246, 10139157853, 20278315706]

約数ペア:

[(1, 20278315706), (2, 10139157853), (11, 1843483246), (19, 1067279774), (22, 921741623), (38, 533639887), (41, 494593066), (82, 247296533), (121, 167589386), (209, 97025434), (242, 83794693), (263, 77103862), (409, 49580234), (418, 48512717), (451, 44963006), (526, 38551931), (779, 26031214), (818, 24790117), (902, 22481503), (1558, 13015607), (2299, 8820494), (2893, 7009442), (4499, 4507294), (4598, 4410247), (4961, 4087546), (4997, 4058098), (5786, 3504721), (7771, 2609486), (8569, 2366474), (8998, 2253647), (9922, 2043773), (9994, 2029049), (10783, 1880582), (15542, 1304743), (16769, 1209274), (17138, 1183237), (21566, 940291), (31823, 637222), (33538, 604637), (49489, 409754), (54967, 368918), (63646, 318611), (85481, 237226), (94259, 215134), (98978, 204877), (107567, 188518), (109934, 184459), (118613, 170962)]