19704496

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:242

約数の個数: 80

約数和(自身を含む): 47139840

約数和(自身を除く): 27435344

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 79, 112, 119, 131, 136, 158, 238, 262, 272, 316, 476, 524, 553, 632, 917, 952, 1048, 1106, 1264, 1343, 1834, 1904, 2096, 2212, 2227, 2686, 3668, 4424, 4454, 5372, 7336, 8848, 8908, 9401, 10349, 10744, 14672, 15589, 17816, 18802, 20698, 21488, 31178, 35632, 37604, 41396, 62356, 72443, 75208, 82792, 124712, 144886, 150416, 165584, 175933, 249424, 289772, 351866, 579544, 703732, 1159088, 1231531, 1407464, 2463062, 2814928, 4926124, 9852248, 19704496]

約数ペア:

[(1, 19704496), (2, 9852248), (4, 4926124), (7, 2814928), (8, 2463062), (14, 1407464), (16, 1231531), (17, 1159088), (28, 703732), (34, 579544), (56, 351866), (68, 289772), (79, 249424), (112, 175933), (119, 165584), (131, 150416), (136, 144886), (158, 124712), (238, 82792), (262, 75208), (272, 72443), (316, 62356), (476, 41396), (524, 37604), (553, 35632), (632, 31178), (917, 21488), (952, 20698), (1048, 18802), (1106, 17816), (1264, 15589), (1343, 14672), (1834, 10744), (1904, 10349), (2096, 9401), (2212, 8908), (2227, 8848), (2686, 7336), (3668, 5372), (4424, 4454)]