15990587648

素因数分解:

$2^8\times 7^1\times {\mathrm{31}}^1\times {\mathrm{287849}}^1$

素因数の和:287903

約数の個数: 72

約数和(自身を含む): 37655385600

約数和(自身を除く): 21664797952

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 256, 434, 448, 496, 868, 896, 992, 1736, 1792, 1984, 3472, 3968, 6944, 7936, 13888, 27776, 55552, 287849, 575698, 1151396, 2014943, 2302792, 4029886, 4605584, 8059772, 8923319, 9211168, 16119544, 17846638, 18422336, 32239088, 35693276, 36844672, 62463233, 64478176, 71386552, 73689344, 124926466, 128956352, 142773104, 249852932, 257912704, 285546208, 499705864, 515825408, 571092416, 999411728, 1142184832, 1998823456, 2284369664, 3997646912, 7995293824, 15990587648]

約数ペア:

[(1, 15990587648), (2, 7995293824), (4, 3997646912), (7, 2284369664), (8, 1998823456), (14, 1142184832), (16, 999411728), (28, 571092416), (31, 515825408), (32, 499705864), (56, 285546208), (62, 257912704), (64, 249852932), (112, 142773104), (124, 128956352), (128, 124926466), (217, 73689344), (224, 71386552), (248, 64478176), (256, 62463233), (434, 36844672), (448, 35693276), (496, 32239088), (868, 18422336), (896, 17846638), (992, 16119544), (1736, 9211168), (1792, 8923319), (1984, 8059772), (3472, 4605584), (3968, 4029886), (6944, 2302792), (7936, 2014943), (13888, 1151396), (27776, 575698), (55552, 287849)]