128781688

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^2\times {\mathrm{2393}}^1$

素因数の和:2468

約数の個数: 48

約数和(自身を含む): 285269040

約数和(自身を除く): 156487352

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 961, 1736, 1922, 2393, 3844, 4786, 6727, 7688, 9572, 13454, 16751, 19144, 26908, 33502, 53816, 67004, 74183, 134008, 148366, 296732, 519281, 593464, 1038562, 2077124, 2299673, 4154248, 4599346, 9198692, 16097711, 18397384, 32195422, 64390844, 128781688]

約数ペア:

[(1, 128781688), (2, 64390844), (4, 32195422), (7, 18397384), (8, 16097711), (14, 9198692), (28, 4599346), (31, 4154248), (56, 2299673), (62, 2077124), (124, 1038562), (217, 593464), (248, 519281), (434, 296732), (868, 148366), (961, 134008), (1736, 74183), (1922, 67004), (2393, 53816), (3844, 33502), (4786, 26908), (6727, 19144), (7688, 16751), (9572, 13454)]