21274400

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1$

素因数の和:187

約数の個数: 144

約数和(自身を含む): 61871040

約数和(自身を除く): 40596640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 29, 32, 35, 40, 50, 56, 58, 70, 80, 100, 112, 116, 131, 140, 145, 160, 175, 200, 203, 224, 232, 262, 280, 290, 350, 400, 406, 464, 524, 560, 580, 655, 700, 725, 800, 812, 917, 928, 1015, 1048, 1120, 1160, 1310, 1400, 1450, 1624, 1834, 2030, 2096, 2320, 2620, 2800, 2900, 3248, 3275, 3668, 3799, 4060, 4192, 4585, 4640, 5075, 5240, 5600, 5800, 6496, 6550, 7336, 7598, 8120, 9170, 10150, 10480, 11600, 13100, 14672, 15196, 16240, 18340, 18995, 20300, 20960, 22925, 23200, 26200, 26593, 29344, 30392, 32480, 36680, 37990, 40600, 45850, 52400, 53186, 60784, 73360, 75980, 81200, 91700, 94975, 104800, 106372, 121568, 132965, 146720, 151960, 162400, 183400, 189950, 212744, 265930, 303920, 366800, 379900, 425488, 531860, 607840, 664825, 733600, 759800, 850976, 1063720, 1329650, 1519600, 2127440, 2659300, 3039200, 4254880, 5318600, 10637200, 21274400]

約数ペア:

[(1, 21274400), (2, 10637200), (4, 5318600), (5, 4254880), (7, 3039200), (8, 2659300), (10, 2127440), (14, 1519600), (16, 1329650), (20, 1063720), (25, 850976), (28, 759800), (29, 733600), (32, 664825), (35, 607840), (40, 531860), (50, 425488), (56, 379900), (58, 366800), (70, 303920), (80, 265930), (100, 212744), (112, 189950), (116, 183400), (131, 162400), (140, 151960), (145, 146720), (160, 132965), (175, 121568), (200, 106372), (203, 104800), (224, 94975), (232, 91700), (262, 81200), (280, 75980), (290, 73360), (350, 60784), (400, 53186), (406, 52400), (464, 45850), (524, 40600), (560, 37990), (580, 36680), (655, 32480), (700, 30392), (725, 29344), (800, 26593), (812, 26200), (917, 23200), (928, 22925), (1015, 20960), (1048, 20300), (1120, 18995), (1160, 18340), (1310, 16240), (1400, 15196), (1450, 14672), (1624, 13100), (1834, 11600), (2030, 10480), (2096, 10150), (2320, 9170), (2620, 8120), (2800, 7598), (2900, 7336), (3248, 6550), (3275, 6496), (3668, 5800), (3799, 5600), (4060, 5240), (4192, 5075), (4585, 4640)]