81419936

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{397}}^1$

素因数の和:466

約数の個数: 96

約数和(自身を含む): 189559440

約数和(自身を除く): 108139504

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 29, 32, 34, 52, 58, 68, 104, 116, 136, 208, 221, 232, 272, 377, 397, 416, 442, 464, 493, 544, 754, 794, 884, 928, 986, 1508, 1588, 1768, 1972, 3016, 3176, 3536, 3944, 5161, 6032, 6352, 6409, 6749, 7072, 7888, 10322, 11513, 12064, 12704, 12818, 13498, 15776, 20644, 23026, 25636, 26996, 41288, 46052, 51272, 53992, 82576, 87737, 92104, 102544, 107984, 149669, 165152, 175474, 184208, 195721, 205088, 215968, 299338, 350948, 368416, 391442, 598676, 701896, 782884, 1197352, 1403792, 1565768, 2394704, 2544373, 2807584, 3131536, 4789408, 5088746, 6263072, 10177492, 20354984, 40709968, 81419936]

約数ペア:

[(1, 81419936), (2, 40709968), (4, 20354984), (8, 10177492), (13, 6263072), (16, 5088746), (17, 4789408), (26, 3131536), (29, 2807584), (32, 2544373), (34, 2394704), (52, 1565768), (58, 1403792), (68, 1197352), (104, 782884), (116, 701896), (136, 598676), (208, 391442), (221, 368416), (232, 350948), (272, 299338), (377, 215968), (397, 205088), (416, 195721), (442, 184208), (464, 175474), (493, 165152), (544, 149669), (754, 107984), (794, 102544), (884, 92104), (928, 87737), (986, 82576), (1508, 53992), (1588, 51272), (1768, 46052), (1972, 41288), (3016, 26996), (3176, 25636), (3536, 23026), (3944, 20644), (5161, 15776), (6032, 13498), (6352, 12818), (6409, 12704), (6749, 12064), (7072, 11513), (7888, 10322)]