81401216

素因数分解:

$2^7\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:164

約数の個数: 96

約数和(自身を含む): 181433520

約数和(自身を除く): 100032304

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 53, 64, 71, 104, 106, 128, 142, 169, 208, 212, 284, 338, 416, 424, 568, 676, 689, 832, 848, 923, 1136, 1352, 1378, 1664, 1696, 1846, 2272, 2704, 2756, 3392, 3692, 3763, 4544, 5408, 5512, 6784, 7384, 7526, 8957, 9088, 10816, 11024, 11999, 14768, 15052, 17914, 21632, 22048, 23998, 29536, 30104, 35828, 44096, 47996, 48919, 59072, 60208, 71656, 88192, 95992, 97838, 118144, 120416, 143312, 191984, 195676, 240832, 286624, 383968, 391352, 481664, 573248, 635947, 767936, 782704, 1146496, 1271894, 1535872, 1565408, 2543788, 3130816, 5087576, 6261632, 10175152, 20350304, 40700608, 81401216]

約数ペア:

[(1, 81401216), (2, 40700608), (4, 20350304), (8, 10175152), (13, 6261632), (16, 5087576), (26, 3130816), (32, 2543788), (52, 1565408), (53, 1535872), (64, 1271894), (71, 1146496), (104, 782704), (106, 767936), (128, 635947), (142, 573248), (169, 481664), (208, 391352), (212, 383968), (284, 286624), (338, 240832), (416, 195676), (424, 191984), (568, 143312), (676, 120416), (689, 118144), (832, 97838), (848, 95992), (923, 88192), (1136, 71656), (1352, 60208), (1378, 59072), (1664, 48919), (1696, 47996), (1846, 44096), (2272, 35828), (2704, 30104), (2756, 29536), (3392, 23998), (3692, 22048), (3763, 21632), (4544, 17914), (5408, 15052), (5512, 14768), (6784, 11999), (7384, 11024), (7526, 10816), (8957, 9088)]