20172649684

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{467}}^1$

素因数の和:638

約数の個数: 144

約数和(自身を含む): 42482119680

約数和(自身を除く): 22309469996

約数列:

[1, 2, 4, 11, 17, 22, 34, 43, 44, 68, 79, 86, 158, 172, 187, 289, 316, 374, 467, 473, 578, 731, 748, 869, 934, 946, 1156, 1343, 1462, 1738, 1868, 1892, 2686, 2924, 3179, 3397, 3476, 5137, 5372, 6358, 6794, 7939, 8041, 10274, 12427, 12716, 13588, 14773, 15878, 16082, 20081, 20548, 22831, 24854, 29546, 31756, 32164, 36893, 37367, 40162, 45662, 49708, 57749, 59092, 73786, 74734, 80324, 87329, 91324, 115498, 134963, 136697, 147572, 149468, 174658, 220891, 230996, 251141, 269926, 273394, 341377, 349316, 405823, 441782, 502282, 539852, 546788, 627181, 635239, 682754, 811646, 883564, 981733, 1004564, 1254362, 1270478, 1365508, 1484593, 1586399, 1623292, 1963466, 2508724, 2540956, 2969186, 3172798, 3755147, 3926932, 5803409, 5938372, 6345596, 6898991, 7510294, 10662077, 10799063, 11606818, 13797982, 15020588, 17450389, 21324154, 21598126, 23213636, 26968783, 27595964, 34900778, 42648308, 43196252, 53937566, 63837499, 69801556, 107875132, 117282847, 127674998, 234565694, 255349996, 296656613, 458469311, 469131388, 593313226, 916938622, 1186626452, 1833877244, 5043162421, 10086324842, 20172649684]

約数ペア:

[(1, 20172649684), (2, 10086324842), (4, 5043162421), (11, 1833877244), (17, 1186626452), (22, 916938622), (34, 593313226), (43, 469131388), (44, 458469311), (68, 296656613), (79, 255349996), (86, 234565694), (158, 127674998), (172, 117282847), (187, 107875132), (289, 69801556), (316, 63837499), (374, 53937566), (467, 43196252), (473, 42648308), (578, 34900778), (731, 27595964), (748, 26968783), (869, 23213636), (934, 21598126), (946, 21324154), (1156, 17450389), (1343, 15020588), (1462, 13797982), (1738, 11606818), (1868, 10799063), (1892, 10662077), (2686, 7510294), (2924, 6898991), (3179, 6345596), (3397, 5938372), (3476, 5803409), (5137, 3926932), (5372, 3755147), (6358, 3172798), (6794, 2969186), (7939, 2540956), (8041, 2508724), (10274, 1963466), (12427, 1623292), (12716, 1586399), (13588, 1484593), (14773, 1365508), (15878, 1270478), (16082, 1254362), (20081, 1004564), (20548, 981733), (22831, 883564), (24854, 811646), (29546, 682754), (31756, 635239), (32164, 627181), (36893, 546788), (37367, 539852), (40162, 502282), (45662, 441782), (49708, 405823), (57749, 349316), (59092, 341377), (73786, 273394), (74734, 269926), (80324, 251141), (87329, 230996), (91324, 220891), (115498, 174658), (134963, 149468), (136697, 147572)]