19915158016

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{743}}^1\times {\mathrm{4027}}^1$

素因数の和:4801

約数の個数: 80

約数和(自身を含む): 42920627904

約数和(自身を除く): 23005469888

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 743, 832, 1486, 1664, 2972, 3328, 4027, 5944, 6656, 8054, 9659, 11888, 16108, 19318, 23776, 32216, 38636, 47552, 52351, 64432, 77272, 95104, 104702, 128864, 154544, 190208, 209404, 257728, 309088, 380416, 418808, 515456, 618176, 837616, 1030912, 1236352, 1675232, 2061824, 2472704, 2992061, 3350464, 4945408, 5984122, 6700928, 11968244, 13401856, 23936488, 26803712, 38896793, 47872976, 77793586, 95745952, 155587172, 191491904, 311174344, 382983808, 622348688, 765967616, 1244697376, 1531935232, 2489394752, 4978789504, 9957579008, 19915158016]

約数ペア:

[(1, 19915158016), (2, 9957579008), (4, 4978789504), (8, 2489394752), (13, 1531935232), (16, 1244697376), (26, 765967616), (32, 622348688), (52, 382983808), (64, 311174344), (104, 191491904), (128, 155587172), (208, 95745952), (256, 77793586), (416, 47872976), (512, 38896793), (743, 26803712), (832, 23936488), (1486, 13401856), (1664, 11968244), (2972, 6700928), (3328, 5984122), (4027, 4945408), (5944, 3350464), (6656, 2992061), (8054, 2472704), (9659, 2061824), (11888, 1675232), (16108, 1236352), (19318, 1030912), (23776, 837616), (32216, 618176), (38636, 515456), (47552, 418808), (52351, 380416), (64432, 309088), (77272, 257728), (95104, 209404), (104702, 190208), (128864, 154544)]