87441280

素因数分解:

$2^7\times 5^1\times {\mathrm{317}}^1\times {\mathrm{431}}^1$

素因数の和:767

約数の個数: 64

約数和(自身を含む): 210185280

約数和(自身を除く): 122744000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 317, 320, 431, 634, 640, 862, 1268, 1585, 1724, 2155, 2536, 3170, 3448, 4310, 5072, 6340, 6896, 8620, 10144, 12680, 13792, 17240, 20288, 25360, 27584, 34480, 40576, 50720, 55168, 68960, 101440, 136627, 137920, 202880, 273254, 275840, 546508, 683135, 1093016, 1366270, 2186032, 2732540, 4372064, 5465080, 8744128, 10930160, 17488256, 21860320, 43720640, 87441280]

約数ペア:

[(1, 87441280), (2, 43720640), (4, 21860320), (5, 17488256), (8, 10930160), (10, 8744128), (16, 5465080), (20, 4372064), (32, 2732540), (40, 2186032), (64, 1366270), (80, 1093016), (128, 683135), (160, 546508), (317, 275840), (320, 273254), (431, 202880), (634, 137920), (640, 136627), (862, 101440), (1268, 68960), (1585, 55168), (1724, 50720), (2155, 40576), (2536, 34480), (3170, 27584), (3448, 25360), (4310, 20288), (5072, 17240), (6340, 13792), (6896, 12680), (8620, 10144)]