31465720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5501}}^1$

素因数の和:5536

約数の個数: 64

約数和(自身を含む): 83190240

約数和(自身を除く): 51724520

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 5501, 5720, 11002, 22004, 27505, 44008, 55010, 60511, 71513, 110020, 121022, 143026, 220040, 242044, 286052, 302555, 357565, 484088, 572104, 605110, 715130, 786643, 1210220, 1430260, 1573286, 2420440, 2860520, 3146572, 3933215, 6293144, 7866430, 15732860, 31465720]

約数ペア:

[(1, 31465720), (2, 15732860), (4, 7866430), (5, 6293144), (8, 3933215), (10, 3146572), (11, 2860520), (13, 2420440), (20, 1573286), (22, 1430260), (26, 1210220), (40, 786643), (44, 715130), (52, 605110), (55, 572104), (65, 484088), (88, 357565), (104, 302555), (110, 286052), (130, 242044), (143, 220040), (220, 143026), (260, 121022), (286, 110020), (440, 71513), (520, 60511), (572, 55010), (715, 44008), (1144, 27505), (1430, 22004), (2860, 11002), (5501, 5720)]