20187840

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1237}}^1$

素因数の和:1274

約数の個数: 112

約数和(自身を含む): 67921632

約数和(自身を除く): 47733792

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 136, 160, 170, 192, 204, 240, 255, 272, 320, 340, 408, 480, 510, 544, 680, 816, 960, 1020, 1088, 1237, 1360, 1632, 2040, 2474, 2720, 3264, 3711, 4080, 4948, 5440, 6185, 7422, 8160, 9896, 12370, 14844, 16320, 18555, 19792, 21029, 24740, 29688, 37110, 39584, 42058, 49480, 59376, 63087, 74220, 79168, 84116, 98960, 105145, 118752, 126174, 148440, 168232, 197920, 210290, 237504, 252348, 296880, 315435, 336464, 395840, 420580, 504696, 593760, 630870, 672928, 841160, 1009392, 1187520, 1261740, 1345856, 1682320, 2018784, 2523480, 3364640, 4037568, 5046960, 6729280, 10093920, 20187840]

約数ペア:

[(1, 20187840), (2, 10093920), (3, 6729280), (4, 5046960), (5, 4037568), (6, 3364640), (8, 2523480), (10, 2018784), (12, 1682320), (15, 1345856), (16, 1261740), (17, 1187520), (20, 1009392), (24, 841160), (30, 672928), (32, 630870), (34, 593760), (40, 504696), (48, 420580), (51, 395840), (60, 336464), (64, 315435), (68, 296880), (80, 252348), (85, 237504), (96, 210290), (102, 197920), (120, 168232), (136, 148440), (160, 126174), (170, 118752), (192, 105145), (204, 98960), (240, 84116), (255, 79168), (272, 74220), (320, 63087), (340, 59376), (408, 49480), (480, 42058), (510, 39584), (544, 37110), (680, 29688), (816, 24740), (960, 21029), (1020, 19792), (1088, 18555), (1237, 16320), (1360, 14844), (1632, 12370), (2040, 9896), (2474, 8160), (2720, 7422), (3264, 6185), (3711, 5440), (4080, 4948)]