2775640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{431}}^1$

素因数の和:472

約数の個数: 64

約数和(自身を含む): 7464960

約数和(自身を除く): 4689320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 431, 460, 644, 805, 862, 920, 1288, 1610, 1724, 2155, 3017, 3220, 3448, 4310, 6034, 6440, 8620, 9913, 12068, 15085, 17240, 19826, 24136, 30170, 39652, 49565, 60340, 69391, 79304, 99130, 120680, 138782, 198260, 277564, 346955, 396520, 555128, 693910, 1387820, 2775640]

約数ペア:

[(1, 2775640), (2, 1387820), (4, 693910), (5, 555128), (7, 396520), (8, 346955), (10, 277564), (14, 198260), (20, 138782), (23, 120680), (28, 99130), (35, 79304), (40, 69391), (46, 60340), (56, 49565), (70, 39652), (92, 30170), (115, 24136), (140, 19826), (161, 17240), (184, 15085), (230, 12068), (280, 9913), (322, 8620), (431, 6440), (460, 6034), (644, 4310), (805, 3448), (862, 3220), (920, 3017), (1288, 2155), (1610, 1724)]