31256120

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{431}}^1$

素因数の和:493

約数の個数: 96

約数和(自身を含む): 84214080

約数和(自身を除く): 52957960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 49, 56, 70, 74, 98, 140, 148, 185, 196, 245, 259, 280, 296, 370, 392, 431, 490, 518, 740, 862, 980, 1036, 1295, 1480, 1724, 1813, 1960, 2072, 2155, 2590, 3017, 3448, 3626, 4310, 5180, 6034, 7252, 8620, 9065, 10360, 12068, 14504, 15085, 15947, 17240, 18130, 21119, 24136, 30170, 31894, 36260, 42238, 60340, 63788, 72520, 79735, 84476, 105595, 111629, 120680, 127576, 159470, 168952, 211190, 223258, 318940, 422380, 446516, 558145, 637880, 781403, 844760, 893032, 1116290, 1562806, 2232580, 3125612, 3907015, 4465160, 6251224, 7814030, 15628060, 31256120]

約数ペア:

[(1, 31256120), (2, 15628060), (4, 7814030), (5, 6251224), (7, 4465160), (8, 3907015), (10, 3125612), (14, 2232580), (20, 1562806), (28, 1116290), (35, 893032), (37, 844760), (40, 781403), (49, 637880), (56, 558145), (70, 446516), (74, 422380), (98, 318940), (140, 223258), (148, 211190), (185, 168952), (196, 159470), (245, 127576), (259, 120680), (280, 111629), (296, 105595), (370, 84476), (392, 79735), (431, 72520), (490, 63788), (518, 60340), (740, 42238), (862, 36260), (980, 31894), (1036, 30170), (1295, 24136), (1480, 21119), (1724, 18130), (1813, 17240), (1960, 15947), (2072, 15085), (2155, 14504), (2590, 12068), (3017, 10360), (3448, 9065), (3626, 8620), (4310, 7252), (5180, 6034)]