221040640

素因数分解:

$2^{12}\times 5^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:323

約数の個数: 104

約数和(自身を含む): 544930848

約数和(自身を除く): 323890208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 251, 256, 320, 344, 430, 502, 512, 640, 688, 860, 1004, 1024, 1255, 1280, 1376, 1720, 2008, 2048, 2510, 2560, 2752, 3440, 4016, 4096, 5020, 5120, 5504, 6880, 8032, 10040, 10240, 10793, 11008, 13760, 16064, 20080, 20480, 21586, 22016, 27520, 32128, 40160, 43172, 44032, 53965, 55040, 64256, 80320, 86344, 88064, 107930, 110080, 128512, 160640, 172688, 176128, 215860, 220160, 257024, 321280, 345376, 431720, 440320, 514048, 642560, 690752, 863440, 880640, 1028096, 1285120, 1381504, 1726880, 2570240, 2763008, 3453760, 5140480, 5526016, 6907520, 11052032, 13815040, 22104064, 27630080, 44208128, 55260160, 110520320, 221040640]

約数ペア:

[(1, 221040640), (2, 110520320), (4, 55260160), (5, 44208128), (8, 27630080), (10, 22104064), (16, 13815040), (20, 11052032), (32, 6907520), (40, 5526016), (43, 5140480), (64, 3453760), (80, 2763008), (86, 2570240), (128, 1726880), (160, 1381504), (172, 1285120), (215, 1028096), (251, 880640), (256, 863440), (320, 690752), (344, 642560), (430, 514048), (502, 440320), (512, 431720), (640, 345376), (688, 321280), (860, 257024), (1004, 220160), (1024, 215860), (1255, 176128), (1280, 172688), (1376, 160640), (1720, 128512), (2008, 110080), (2048, 107930), (2510, 88064), (2560, 86344), (2752, 80320), (3440, 64256), (4016, 55040), (4096, 53965), (5020, 44032), (5120, 43172), (5504, 40160), (6880, 32128), (8032, 27520), (10040, 22016), (10240, 21586), (10793, 20480), (11008, 20080), (13760, 16064)]