64225280

素因数分解:

$2^{18}\times 5^1\times 7^2$

素因数の和:55

約数の個数: 114

約数和(自身を含む): 179306154

約数和(自身を除く): 115080874

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, 160, 196, 224, 245, 256, 280, 320, 392, 448, 490, 512, 560, 640, 784, 896, 980, 1024, 1120, 1280, 1568, 1792, 1960, 2048, 2240, 2560, 3136, 3584, 3920, 4096, 4480, 5120, 6272, 7168, 7840, 8192, 8960, 10240, 12544, 14336, 15680, 16384, 17920, 20480, 25088, 28672, 31360, 32768, 35840, 40960, 50176, 57344, 62720, 65536, 71680, 81920, 100352, 114688, 125440, 131072, 143360, 163840, 200704, 229376, 250880, 262144, 286720, 327680, 401408, 458752, 501760, 573440, 655360, 802816, 917504, 1003520, 1146880, 1310720, 1605632, 1835008, 2007040, 2293760, 3211264, 4014080, 4587520, 6422528, 8028160, 9175040, 12845056, 16056320, 32112640, 64225280]

約数ペア:

[(1, 64225280), (2, 32112640), (4, 16056320), (5, 12845056), (7, 9175040), (8, 8028160), (10, 6422528), (14, 4587520), (16, 4014080), (20, 3211264), (28, 2293760), (32, 2007040), (35, 1835008), (40, 1605632), (49, 1310720), (56, 1146880), (64, 1003520), (70, 917504), (80, 802816), (98, 655360), (112, 573440), (128, 501760), (140, 458752), (160, 401408), (196, 327680), (224, 286720), (245, 262144), (256, 250880), (280, 229376), (320, 200704), (392, 163840), (448, 143360), (490, 131072), (512, 125440), (560, 114688), (640, 100352), (784, 81920), (896, 71680), (980, 65536), (1024, 62720), (1120, 57344), (1280, 50176), (1568, 40960), (1792, 35840), (1960, 32768), (2048, 31360), (2240, 28672), (2560, 25088), (3136, 20480), (3584, 17920), (3920, 16384), (4096, 15680), (4480, 14336), (5120, 12544), (6272, 10240), (7168, 8960), (7840, 8192)]