19948448

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{607}}^1$

素因数の和:709

約数の個数: 48

約数和(自身を含む): 42900480

約数和(自身を除く): 22952032

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 79, 104, 158, 208, 316, 416, 607, 632, 1027, 1214, 1264, 2054, 2428, 2528, 4108, 4856, 7891, 8216, 9712, 15782, 16432, 19424, 31564, 32864, 47953, 63128, 95906, 126256, 191812, 252512, 383624, 623389, 767248, 1246778, 1534496, 2493556, 4987112, 9974224, 19948448]

約数ペア:

[(1, 19948448), (2, 9974224), (4, 4987112), (8, 2493556), (13, 1534496), (16, 1246778), (26, 767248), (32, 623389), (52, 383624), (79, 252512), (104, 191812), (158, 126256), (208, 95906), (316, 63128), (416, 47953), (607, 32864), (632, 31564), (1027, 19424), (1214, 16432), (1264, 15782), (2054, 9712), (2428, 8216), (2528, 7891), (4108, 4856)]