20274240

素因数分解:

$2^6\times 3^1\times 5^1\times 7^2\times {\mathrm{431}}^1$

素因数の和:465

約数の個数: 168

約数和(自身を含む): 75053952

約数和(自身を除く): 54779712

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 64, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 192, 196, 210, 224, 240, 245, 280, 294, 320, 336, 392, 420, 431, 448, 480, 490, 560, 588, 672, 735, 784, 840, 862, 960, 980, 1120, 1176, 1293, 1344, 1470, 1568, 1680, 1724, 1960, 2155, 2240, 2352, 2586, 2940, 3017, 3136, 3360, 3448, 3920, 4310, 4704, 5172, 5880, 6034, 6465, 6720, 6896, 7840, 8620, 9051, 9408, 10344, 11760, 12068, 12930, 13792, 15085, 15680, 17240, 18102, 20688, 21119, 23520, 24136, 25860, 27584, 30170, 34480, 36204, 41376, 42238, 45255, 47040, 48272, 51720, 60340, 63357, 68960, 72408, 82752, 84476, 90510, 96544, 103440, 105595, 120680, 126714, 137920, 144816, 168952, 181020, 193088, 206880, 211190, 241360, 253428, 289632, 316785, 337904, 362040, 413760, 422380, 482720, 506856, 579264, 633570, 675808, 724080, 844760, 965440, 1013712, 1267140, 1351616, 1448160, 1689520, 2027424, 2534280, 2896320, 3379040, 4054848, 5068560, 6758080, 10137120, 20274240]

約数ペア:

[(1, 20274240), (2, 10137120), (3, 6758080), (4, 5068560), (5, 4054848), (6, 3379040), (7, 2896320), (8, 2534280), (10, 2027424), (12, 1689520), (14, 1448160), (15, 1351616), (16, 1267140), (20, 1013712), (21, 965440), (24, 844760), (28, 724080), (30, 675808), (32, 633570), (35, 579264), (40, 506856), (42, 482720), (48, 422380), (49, 413760), (56, 362040), (60, 337904), (64, 316785), (70, 289632), (80, 253428), (84, 241360), (96, 211190), (98, 206880), (105, 193088), (112, 181020), (120, 168952), (140, 144816), (147, 137920), (160, 126714), (168, 120680), (192, 105595), (196, 103440), (210, 96544), (224, 90510), (240, 84476), (245, 82752), (280, 72408), (294, 68960), (320, 63357), (336, 60340), (392, 51720), (420, 48272), (431, 47040), (448, 45255), (480, 42238), (490, 41376), (560, 36204), (588, 34480), (672, 30170), (735, 27584), (784, 25860), (840, 24136), (862, 23520), (960, 21119), (980, 20688), (1120, 18102), (1176, 17240), (1293, 15680), (1344, 15085), (1470, 13792), (1568, 12930), (1680, 12068), (1724, 11760), (1960, 10344), (2155, 9408), (2240, 9051), (2352, 8620), (2586, 7840), (2940, 6896), (3017, 6720), (3136, 6465), (3360, 6034), (3448, 5880), (3920, 5172), (4310, 4704)]