68929280

素因数分解:

$2^8\times 5^1\times 7^3\times {\mathrm{157}}^1$

素因数の和:199

約数の個数: 144

約数和(自身を含む): 193771200

約数和(自身を除く): 124841920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 157, 160, 196, 224, 245, 256, 280, 314, 320, 343, 392, 448, 490, 560, 628, 640, 686, 784, 785, 896, 980, 1099, 1120, 1256, 1280, 1372, 1568, 1570, 1715, 1792, 1960, 2198, 2240, 2512, 2744, 3136, 3140, 3430, 3920, 4396, 4480, 5024, 5488, 5495, 6272, 6280, 6860, 7693, 7840, 8792, 8960, 10048, 10976, 10990, 12544, 12560, 13720, 15386, 15680, 17584, 20096, 21952, 21980, 25120, 27440, 30772, 31360, 35168, 38465, 40192, 43904, 43960, 50240, 53851, 54880, 61544, 62720, 70336, 76930, 87808, 87920, 100480, 107702, 109760, 123088, 140672, 153860, 175840, 200960, 215404, 219520, 246176, 269255, 281344, 307720, 351680, 430808, 439040, 492352, 538510, 615440, 703360, 861616, 984704, 1077020, 1230880, 1406720, 1723232, 1969408, 2154040, 2461760, 3446464, 4308080, 4923520, 6892928, 8616160, 9847040, 13785856, 17232320, 34464640, 68929280]

約数ペア:

[(1, 68929280), (2, 34464640), (4, 17232320), (5, 13785856), (7, 9847040), (8, 8616160), (10, 6892928), (14, 4923520), (16, 4308080), (20, 3446464), (28, 2461760), (32, 2154040), (35, 1969408), (40, 1723232), (49, 1406720), (56, 1230880), (64, 1077020), (70, 984704), (80, 861616), (98, 703360), (112, 615440), (128, 538510), (140, 492352), (157, 439040), (160, 430808), (196, 351680), (224, 307720), (245, 281344), (256, 269255), (280, 246176), (314, 219520), (320, 215404), (343, 200960), (392, 175840), (448, 153860), (490, 140672), (560, 123088), (628, 109760), (640, 107702), (686, 100480), (784, 87920), (785, 87808), (896, 76930), (980, 70336), (1099, 62720), (1120, 61544), (1256, 54880), (1280, 53851), (1372, 50240), (1568, 43960), (1570, 43904), (1715, 40192), (1792, 38465), (1960, 35168), (2198, 31360), (2240, 30772), (2512, 27440), (2744, 25120), (3136, 21980), (3140, 21952), (3430, 20096), (3920, 17584), (4396, 15680), (4480, 15386), (5024, 13720), (5488, 12560), (5495, 12544), (6272, 10990), (6280, 10976), (6860, 10048), (7693, 8960), (7840, 8792)]