21107200

素因数分解:

$2^9\times 5^2\times {\mathrm{17}}^1\times {\mathrm{97}}^1$

素因数の和:142

約数の個数: 120

約数和(自身を含む): 55941732

約数和(自身を除く): 34834532

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 64, 68, 80, 85, 97, 100, 128, 136, 160, 170, 194, 200, 256, 272, 320, 340, 388, 400, 425, 485, 512, 544, 640, 680, 776, 800, 850, 970, 1088, 1280, 1360, 1552, 1600, 1649, 1700, 1940, 2176, 2425, 2560, 2720, 3104, 3200, 3298, 3400, 3880, 4352, 4850, 5440, 6208, 6400, 6596, 6800, 7760, 8245, 8704, 9700, 10880, 12416, 12800, 13192, 13600, 15520, 16490, 19400, 21760, 24832, 26384, 27200, 31040, 32980, 38800, 41225, 43520, 49664, 52768, 54400, 62080, 65960, 77600, 82450, 105536, 108800, 124160, 131920, 155200, 164900, 211072, 217600, 248320, 263840, 310400, 329800, 422144, 527680, 620800, 659600, 844288, 1055360, 1241600, 1319200, 2110720, 2638400, 4221440, 5276800, 10553600, 21107200]

約数ペア:

[(1, 21107200), (2, 10553600), (4, 5276800), (5, 4221440), (8, 2638400), (10, 2110720), (16, 1319200), (17, 1241600), (20, 1055360), (25, 844288), (32, 659600), (34, 620800), (40, 527680), (50, 422144), (64, 329800), (68, 310400), (80, 263840), (85, 248320), (97, 217600), (100, 211072), (128, 164900), (136, 155200), (160, 131920), (170, 124160), (194, 108800), (200, 105536), (256, 82450), (272, 77600), (320, 65960), (340, 62080), (388, 54400), (400, 52768), (425, 49664), (485, 43520), (512, 41225), (544, 38800), (640, 32980), (680, 31040), (776, 27200), (800, 26384), (850, 24832), (970, 21760), (1088, 19400), (1280, 16490), (1360, 15520), (1552, 13600), (1600, 13192), (1649, 12800), (1700, 12416), (1940, 10880), (2176, 9700), (2425, 8704), (2560, 8245), (2720, 7760), (3104, 6800), (3200, 6596), (3298, 6400), (3400, 6208), (3880, 5440), (4352, 4850)]