2015774740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{89431}}^1$

素因数の和:89477

約数の個数: 72

約数和(自身を含む): 5138404992

約数和(自身を除く): 3122630252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 140, 161, 196, 230, 245, 322, 460, 490, 644, 805, 980, 1127, 1610, 2254, 3220, 4508, 5635, 11270, 22540, 89431, 178862, 357724, 447155, 626017, 894310, 1252034, 1788620, 2056913, 2504068, 3130085, 4113826, 4382119, 6260170, 8227652, 8764238, 10284565, 12520340, 14398391, 17528476, 20569130, 21910595, 28796782, 41138260, 43821190, 57593564, 71991955, 87642380, 100788737, 143983910, 201577474, 287967820, 403154948, 503943685, 1007887370, 2015774740]

約数ペア:

[(1, 2015774740), (2, 1007887370), (4, 503943685), (5, 403154948), (7, 287967820), (10, 201577474), (14, 143983910), (20, 100788737), (23, 87642380), (28, 71991955), (35, 57593564), (46, 43821190), (49, 41138260), (70, 28796782), (92, 21910595), (98, 20569130), (115, 17528476), (140, 14398391), (161, 12520340), (196, 10284565), (230, 8764238), (245, 8227652), (322, 6260170), (460, 4382119), (490, 4113826), (644, 3130085), (805, 2504068), (980, 2056913), (1127, 1788620), (1610, 1252034), (2254, 894310), (3220, 626017), (4508, 447155), (5635, 357724), (11270, 178862), (22540, 89431)]