19964800

素因数分解:

$2^7\times 5^2\times {\mathrm{17}}^1\times {\mathrm{367}}^1$

素因数の和:408

約数の個数: 96

約数和(自身を含む): 52362720

約数和(自身を除く): 32397920

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 64, 68, 80, 85, 100, 128, 136, 160, 170, 200, 272, 320, 340, 367, 400, 425, 544, 640, 680, 734, 800, 850, 1088, 1360, 1468, 1600, 1700, 1835, 2176, 2720, 2936, 3200, 3400, 3670, 5440, 5872, 6239, 6800, 7340, 9175, 10880, 11744, 12478, 13600, 14680, 18350, 23488, 24956, 27200, 29360, 31195, 36700, 46976, 49912, 54400, 58720, 62390, 73400, 99824, 117440, 124780, 146800, 155975, 199648, 234880, 249560, 293600, 311950, 399296, 499120, 587200, 623900, 798592, 998240, 1174400, 1247800, 1996480, 2495600, 3992960, 4991200, 9982400, 19964800]

約数ペア:

[(1, 19964800), (2, 9982400), (4, 4991200), (5, 3992960), (8, 2495600), (10, 1996480), (16, 1247800), (17, 1174400), (20, 998240), (25, 798592), (32, 623900), (34, 587200), (40, 499120), (50, 399296), (64, 311950), (68, 293600), (80, 249560), (85, 234880), (100, 199648), (128, 155975), (136, 146800), (160, 124780), (170, 117440), (200, 99824), (272, 73400), (320, 62390), (340, 58720), (367, 54400), (400, 49912), (425, 46976), (544, 36700), (640, 31195), (680, 29360), (734, 27200), (800, 24956), (850, 23488), (1088, 18350), (1360, 14680), (1468, 13600), (1600, 12478), (1700, 11744), (1835, 10880), (2176, 9175), (2720, 7340), (2936, 6800), (3200, 6239), (3400, 5872), (3670, 5440)]