256920064

素因数分解:

$2^9\times {\mathrm{31}}^1\times {\mathrm{16187}}^1$

素因数の和:16236

約数の個数: 40

約数和(自身を含む): 529930368

約数和(自身を除く): 273010304

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 512, 992, 1984, 3968, 7936, 15872, 16187, 32374, 64748, 129496, 258992, 501797, 517984, 1003594, 1035968, 2007188, 2071936, 4014376, 4143872, 8028752, 8287744, 16057504, 32115008, 64230016, 128460032, 256920064]

約数ペア:

[(1, 256920064), (2, 128460032), (4, 64230016), (8, 32115008), (16, 16057504), (31, 8287744), (32, 8028752), (62, 4143872), (64, 4014376), (124, 2071936), (128, 2007188), (248, 1035968), (256, 1003594), (496, 517984), (512, 501797), (992, 258992), (1984, 129496), (3968, 64748), (7936, 32374), (15872, 16187)]