20906400

素因数分解:

$2^5\times 3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{281}}^1$

素因数の和:335

約数の個数: 144

約数和(自身を含む): 70495488

約数和(自身を除く): 49589088

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 31, 32, 40, 48, 50, 60, 62, 75, 80, 93, 96, 100, 120, 124, 150, 155, 160, 186, 200, 240, 248, 281, 300, 310, 372, 400, 465, 480, 496, 562, 600, 620, 744, 775, 800, 843, 930, 992, 1124, 1200, 1240, 1405, 1488, 1550, 1686, 1860, 2248, 2325, 2400, 2480, 2810, 2976, 3100, 3372, 3720, 4215, 4496, 4650, 4960, 5620, 6200, 6744, 7025, 7440, 8430, 8711, 8992, 9300, 11240, 12400, 13488, 14050, 14880, 16860, 17422, 18600, 21075, 22480, 24800, 26133, 26976, 28100, 33720, 34844, 37200, 42150, 43555, 44960, 52266, 56200, 67440, 69688, 74400, 84300, 87110, 104532, 112400, 130665, 134880, 139376, 168600, 174220, 209064, 217775, 224800, 261330, 278752, 337200, 348440, 418128, 435550, 522660, 653325, 674400, 696880, 836256, 871100, 1045320, 1306650, 1393760, 1742200, 2090640, 2613300, 3484400, 4181280, 5226600, 6968800, 10453200, 20906400]

約数ペア:

[(1, 20906400), (2, 10453200), (3, 6968800), (4, 5226600), (5, 4181280), (6, 3484400), (8, 2613300), (10, 2090640), (12, 1742200), (15, 1393760), (16, 1306650), (20, 1045320), (24, 871100), (25, 836256), (30, 696880), (31, 674400), (32, 653325), (40, 522660), (48, 435550), (50, 418128), (60, 348440), (62, 337200), (75, 278752), (80, 261330), (93, 224800), (96, 217775), (100, 209064), (120, 174220), (124, 168600), (150, 139376), (155, 134880), (160, 130665), (186, 112400), (200, 104532), (240, 87110), (248, 84300), (281, 74400), (300, 69688), (310, 67440), (372, 56200), (400, 52266), (465, 44960), (480, 43555), (496, 42150), (562, 37200), (600, 34844), (620, 33720), (744, 28100), (775, 26976), (800, 26133), (843, 24800), (930, 22480), (992, 21075), (1124, 18600), (1200, 17422), (1240, 16860), (1405, 14880), (1488, 14050), (1550, 13488), (1686, 12400), (1860, 11240), (2248, 9300), (2325, 8992), (2400, 8711), (2480, 8430), (2810, 7440), (2976, 7025), (3100, 6744), (3372, 6200), (3720, 5620), (4215, 4960), (4496, 4650)]