220208128

素因数分解:

$2^{10}\times 7^1\times {\mathrm{31}}^1\times {\mathrm{991}}^1$

素因数の和:1049

約数の個数: 88

約数和(自身を含む): 519839744

約数和(自身を除く): 299631616

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 256, 434, 448, 496, 512, 868, 896, 991, 992, 1024, 1736, 1792, 1982, 1984, 3472, 3584, 3964, 3968, 6937, 6944, 7168, 7928, 7936, 13874, 13888, 15856, 15872, 27748, 27776, 30721, 31712, 31744, 55496, 55552, 61442, 63424, 110992, 111104, 122884, 126848, 215047, 221984, 222208, 245768, 253696, 430094, 443968, 491536, 507392, 860188, 887936, 983072, 1014784, 1720376, 1775872, 1966144, 3440752, 3551744, 3932288, 6881504, 7103488, 7864576, 13763008, 15729152, 27526016, 31458304, 55052032, 110104064, 220208128]

約数ペア:

[(1, 220208128), (2, 110104064), (4, 55052032), (7, 31458304), (8, 27526016), (14, 15729152), (16, 13763008), (28, 7864576), (31, 7103488), (32, 6881504), (56, 3932288), (62, 3551744), (64, 3440752), (112, 1966144), (124, 1775872), (128, 1720376), (217, 1014784), (224, 983072), (248, 887936), (256, 860188), (434, 507392), (448, 491536), (496, 443968), (512, 430094), (868, 253696), (896, 245768), (991, 222208), (992, 221984), (1024, 215047), (1736, 126848), (1792, 122884), (1982, 111104), (1984, 110992), (3472, 63424), (3584, 61442), (3964, 55552), (3968, 55496), (6937, 31744), (6944, 31712), (7168, 30721), (7928, 27776), (7936, 27748), (13874, 15872), (13888, 15856)]