78776320

素因数分解:

$2^{11}\times 5^1\times 7^2\times {\mathrm{157}}^1$

素因数の和:198

約数の個数: 144

約数和(自身を含む): 221277420

約数和(自身を除く): 142501100

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, 392, 448, 490, 512, 560, 628, 640, 784, 785, 896, 980, 1024, 1099, 1120, 1256, 1280, 1568, 1570, 1792, 1960, 2048, 2198, 2240, 2512, 2560, 3136, 3140, 3584, 3920, 4396, 4480, 5024, 5120, 5495, 6272, 6280, 7168, 7693, 7840, 8792, 8960, 10048, 10240, 10990, 12544, 12560, 14336, 15386, 15680, 17584, 17920, 20096, 21980, 25088, 25120, 30772, 31360, 35168, 35840, 38465, 40192, 43960, 50176, 50240, 61544, 62720, 70336, 71680, 76930, 80384, 87920, 100352, 100480, 123088, 125440, 140672, 153860, 160768, 175840, 200960, 246176, 250880, 281344, 307720, 321536, 351680, 401920, 492352, 501760, 562688, 615440, 703360, 803840, 984704, 1125376, 1230880, 1406720, 1607680, 1969408, 2250752, 2461760, 2813440, 3938816, 4923520, 5626880, 7877632, 9847040, 11253760, 15755264, 19694080, 39388160, 78776320]

約数ペア:

[(1, 78776320), (2, 39388160), (4, 19694080), (5, 15755264), (7, 11253760), (8, 9847040), (10, 7877632), (14, 5626880), (16, 4923520), (20, 3938816), (28, 2813440), (32, 2461760), (35, 2250752), (40, 1969408), (49, 1607680), (56, 1406720), (64, 1230880), (70, 1125376), (80, 984704), (98, 803840), (112, 703360), (128, 615440), (140, 562688), (157, 501760), (160, 492352), (196, 401920), (224, 351680), (245, 321536), (256, 307720), (280, 281344), (314, 250880), (320, 246176), (392, 200960), (448, 175840), (490, 160768), (512, 153860), (560, 140672), (628, 125440), (640, 123088), (784, 100480), (785, 100352), (896, 87920), (980, 80384), (1024, 76930), (1099, 71680), (1120, 70336), (1256, 62720), (1280, 61544), (1568, 50240), (1570, 50176), (1792, 43960), (1960, 40192), (2048, 38465), (2198, 35840), (2240, 35168), (2512, 31360), (2560, 30772), (3136, 25120), (3140, 25088), (3584, 21980), (3920, 20096), (4396, 17920), (4480, 17584), (5024, 15680), (5120, 15386), (5495, 14336), (6272, 12560), (6280, 12544), (7168, 10990), (7693, 10240), (7840, 10048), (8792, 8960)]