20854400

素因数分解:

$2^7\times 5^2\times 7^3\times {\mathrm{19}}^1$

素因数の和:64

約数の個数: 192

約数和(自身を含む): 63240000

約数和(自身を除く): 42385600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 25, 28, 32, 35, 38, 40, 49, 50, 56, 64, 70, 76, 80, 95, 98, 100, 112, 128, 133, 140, 152, 160, 175, 190, 196, 200, 224, 245, 266, 280, 304, 320, 343, 350, 380, 392, 400, 448, 475, 490, 532, 560, 608, 640, 665, 686, 700, 760, 784, 800, 896, 931, 950, 980, 1064, 1120, 1216, 1225, 1330, 1372, 1400, 1520, 1568, 1600, 1715, 1862, 1900, 1960, 2128, 2240, 2432, 2450, 2660, 2744, 2800, 3040, 3136, 3200, 3325, 3430, 3724, 3800, 3920, 4256, 4480, 4655, 4900, 5320, 5488, 5600, 6080, 6272, 6517, 6650, 6860, 7448, 7600, 7840, 8512, 8575, 9310, 9800, 10640, 10976, 11200, 12160, 13034, 13300, 13720, 14896, 15200, 15680, 17024, 17150, 18620, 19600, 21280, 21952, 22400, 23275, 26068, 26600, 27440, 29792, 30400, 31360, 32585, 34300, 37240, 39200, 42560, 43904, 46550, 52136, 53200, 54880, 59584, 60800, 65170, 68600, 74480, 78400, 85120, 93100, 104272, 106400, 109760, 119168, 130340, 137200, 148960, 156800, 162925, 186200, 208544, 212800, 219520, 260680, 274400, 297920, 325850, 372400, 417088, 425600, 521360, 548800, 595840, 651700, 744800, 834176, 1042720, 1097600, 1303400, 1489600, 2085440, 2606800, 2979200, 4170880, 5213600, 10427200, 20854400]

約数ペア:

[(1, 20854400), (2, 10427200), (4, 5213600), (5, 4170880), (7, 2979200), (8, 2606800), (10, 2085440), (14, 1489600), (16, 1303400), (19, 1097600), (20, 1042720), (25, 834176), (28, 744800), (32, 651700), (35, 595840), (38, 548800), (40, 521360), (49, 425600), (50, 417088), (56, 372400), (64, 325850), (70, 297920), (76, 274400), (80, 260680), (95, 219520), (98, 212800), (100, 208544), (112, 186200), (128, 162925), (133, 156800), (140, 148960), (152, 137200), (160, 130340), (175, 119168), (190, 109760), (196, 106400), (200, 104272), (224, 93100), (245, 85120), (266, 78400), (280, 74480), (304, 68600), (320, 65170), (343, 60800), (350, 59584), (380, 54880), (392, 53200), (400, 52136), (448, 46550), (475, 43904), (490, 42560), (532, 39200), (560, 37240), (608, 34300), (640, 32585), (665, 31360), (686, 30400), (700, 29792), (760, 27440), (784, 26600), (800, 26068), (896, 23275), (931, 22400), (950, 21952), (980, 21280), (1064, 19600), (1120, 18620), (1216, 17150), (1225, 17024), (1330, 15680), (1372, 15200), (1400, 14896), (1520, 13720), (1568, 13300), (1600, 13034), (1715, 12160), (1862, 11200), (1900, 10976), (1960, 10640), (2128, 9800), (2240, 9310), (2432, 8575), (2450, 8512), (2660, 7840), (2744, 7600), (2800, 7448), (3040, 6860), (3136, 6650), (3200, 6517), (3325, 6272), (3430, 6080), (3724, 5600), (3800, 5488), (3920, 5320), (4256, 4900), (4480, 4655)]