20098400

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:161

約数の個数: 144

約数和(自身を含む): 58183776

約数和(自身を除く): 38085376

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 37, 40, 50, 56, 70, 74, 80, 97, 100, 112, 140, 148, 160, 175, 185, 194, 200, 224, 259, 280, 296, 350, 370, 388, 400, 485, 518, 560, 592, 679, 700, 740, 776, 800, 925, 970, 1036, 1120, 1184, 1295, 1358, 1400, 1480, 1552, 1850, 1940, 2072, 2425, 2590, 2716, 2800, 2960, 3104, 3395, 3589, 3700, 3880, 4144, 4850, 5180, 5432, 5600, 5920, 6475, 6790, 7178, 7400, 7760, 8288, 9700, 10360, 10864, 12950, 13580, 14356, 14800, 15520, 16975, 17945, 19400, 20720, 21728, 25123, 25900, 27160, 28712, 29600, 33950, 35890, 38800, 41440, 50246, 51800, 54320, 57424, 67900, 71780, 77600, 89725, 100492, 103600, 108640, 114848, 125615, 135800, 143560, 179450, 200984, 207200, 251230, 271600, 287120, 358900, 401968, 502460, 543200, 574240, 628075, 717800, 803936, 1004920, 1256150, 1435600, 2009840, 2512300, 2871200, 4019680, 5024600, 10049200, 20098400]

約数ペア:

[(1, 20098400), (2, 10049200), (4, 5024600), (5, 4019680), (7, 2871200), (8, 2512300), (10, 2009840), (14, 1435600), (16, 1256150), (20, 1004920), (25, 803936), (28, 717800), (32, 628075), (35, 574240), (37, 543200), (40, 502460), (50, 401968), (56, 358900), (70, 287120), (74, 271600), (80, 251230), (97, 207200), (100, 200984), (112, 179450), (140, 143560), (148, 135800), (160, 125615), (175, 114848), (185, 108640), (194, 103600), (200, 100492), (224, 89725), (259, 77600), (280, 71780), (296, 67900), (350, 57424), (370, 54320), (388, 51800), (400, 50246), (485, 41440), (518, 38800), (560, 35890), (592, 33950), (679, 29600), (700, 28712), (740, 27160), (776, 25900), (800, 25123), (925, 21728), (970, 20720), (1036, 19400), (1120, 17945), (1184, 16975), (1295, 15520), (1358, 14800), (1400, 14356), (1480, 13580), (1552, 12950), (1850, 10864), (1940, 10360), (2072, 9700), (2425, 8288), (2590, 7760), (2716, 7400), (2800, 7178), (2960, 6790), (3104, 6475), (3395, 5920), (3589, 5600), (3700, 5432), (3880, 5180), (4144, 4850)]